diff --git a/public/editormd/lib/marked.min.backup.js b/public/editormd/lib/marked.min.backup.js
new file mode 100644
index 000000000..28e20ebec
--- /dev/null
+++ b/public/editormd/lib/marked.min.backup.js
@@ -0,0 +1,18 @@
+/**    
+    备注，这个改动没启用，只是做个记录： 
+    br不转成br
+    加了个 if (cap[0] != '</br>' && cap[0] != '<br>') { out+=this.options.sanitize?escape(cap[0]):cap[0]; }
+ */
+/**
+ * marked - a markdown parser
+ * Copyright (c) 2011-2018, Christopher Jeffrey. (MIT Licensed)
+ * https://github.com/markedjs/marked
+   2019 08 29 
+
+   case"html":return this.renderer.html((this.token.text));
+   -->
+   case"html":return this.renderer.paragraph(this.inline.output(this.token.text));
+
+   add:    && !(e instanceof String)
+ */
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diff --git a/public/editormd/lib/marked.min.js b/public/editormd/lib/marked.min.js
index 1ba27d2f4..519296797 100644
--- a/public/editormd/lib/marked.min.js
+++ b/public/editormd/lib/marked.min.js
@@ -1,18 +1,13 @@
-/**    
+/**
+ * marked v0.3.3 - a markdown parser
+ * Copyright (c) 2011-2014, Christopher Jeffrey. (MIT Licensed)
+ * https://github.com/chjj/marked
+    
     备注，这个改动没启用，只是做个记录： 
     br不转成br
     加了个 if (cap[0] != '</br>' && cap[0] != '<br>') { out+=this.options.sanitize?escape(cap[0]):cap[0]; }
  */
-/**
- * marked - a markdown parser
- * Copyright (c) 2011-2018, Christopher Jeffrey. (MIT Licensed)
- * https://github.com/markedjs/marked
-   2019 08 29 
-
-   case"html":return this.renderer.html((this.token.text));
-   -->
-   case"html":return this.renderer.paragraph(this.inline.output(this.token.text));
-
-   add:    && !(e instanceof String)
- */
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r=(t||"").match(/\S*/)[0];if(this.options.highlight){var s=this.options.highlight(e,r);null!=s&&s!==e&&(n=!0,e=s)}return r?'<pre><code class="'+this.options.langPrefix+_(r,!0)+'">'+(n?e:_(e,!0))+"</code></pre>\n":"<pre><code>"+(n?e:_(e,!0))+"</code></pre>"},r.prototype.blockquote=function(e){return"<blockquote>\n"+e+"</blockquote>\n"},r.prototype.html=function(e){return e},r.prototype.heading=function(e,t,n,r){return this.options.headerIds?"<h"+t+' id="'+this.options.headerPrefix+r.slug(n)+'">'+e+"</h"+t+">\n":"<h"+t+">"+e+"</h"+t+">\n"},r.prototype.hr=function(){return this.options.xhtml?"<hr/>\n":"<hr>\n"},r.prototype.list=function(e,t,n){var r=t?"ol":"ul";return"<"+r+(t&&1!==n?' start="'+n+'"':"")+">\n"+e+"</"+r+">\n"},r.prototype.listitem=function(e){return"<li>"+e+"</li>\n"},r.prototype.checkbox=function(e){return"<input "+(e?'checked="" ':"")+'disabled="" type="checkbox"'+(this.options.xhtml?" /":"")+"> 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Renderer;this.renderer.options=this.options;if(!this.links){throw new Error("Tokens array requires a `links` property.")}if(this.options.gfm){if(this.options.breaks){this.rules=inline.breaks}else{this.rules=inline.gfm}}else{if(this.options.pedantic){this.rules=inline.pedantic}}}InlineLexer.rules=inline;InlineLexer.output=function(src,links,options){var inline=new InlineLexer(links,options);return inline.output(src)};InlineLexer.prototype.output=function(src){var out="",link,text,href,cap;while(src){if(cap=this.rules.escape.exec(src)){src=src.substring(cap[0].length);out+=cap[1];continue}if(cap=this.rules.autolink.exec(src)){src=src.substring(cap[0].length);if(cap[2]==="@"){text=cap[1].charAt(6)===":"?this.mangle(cap[1].substring(7)):this.mangle(cap[1]);href=this.mangle("mailto:")+text}else{text=escape(cap[1]);href=text}out+=this.renderer.link(href,null,text);continue}if(!this.inLink&&(cap=this.rules.url.exec(src))){src=src.substring(cap[0].length);text=escape(cap[1]);href=text;out+=this.renderer.link(href,null,text);continue}if(cap=this.rules.tag.exec(src)){if(!this.inLink&&/^<a 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+}if(cap=this.rules.code.exec(src)){src=src.substring(cap[0].length);out+=this.renderer.codespan(escape(cap[2],true));continue}if(cap=this.rules.br.exec(src)){src=src.substring(cap[0].length);out+=this.renderer.br();continue}if(cap=this.rules.del.exec(src)){src=src.substring(cap[0].length);out+=this.renderer.del(this.output(cap[1]));continue}if(cap=this.rules.text.exec(src)){src=src.substring(cap[0].length);out+=escape(this.smartypants(cap[0]));continue}if(src){throw new Error("Infinite loop on byte: "+src.charCodeAt(0))}}return out};InlineLexer.prototype.outputLink=function(cap,link){var href=escape(link.href),title=link.title?escape(link.title):null;return cap[0].charAt(0)!=="!"?this.renderer.link(href,title,this.output(cap[1])):this.renderer.image(href,title,escape(cap[1]))};InlineLexer.prototype.smartypants=function(text){if(!this.options.smartypants){return text}return text.replace(/--/g,"\u2014").replace(/(^|[-\u2014/(\[{"\s])'/g,"$1\u2018").replace(/'/g,"\u2019").replace(/(^|[-\u2014/(\[{\u2018\s])"/g,"$1\u201c").replace(/"/g,"\u201d").replace(/\.{3}/g,"\u2026")};InlineLexer.prototype.mangle=function(text){var out="",l=text.length,i=0,ch;for(;i<l;i++){ch=text.charCodeAt(i);if(Math.random()>0.5){ch="x"+ch.toString(16)}out+="&#"+ch+";"}return out};function Renderer(options){this.options=options||{}}Renderer.prototype.code=function(code,lang,escaped){if(this.options.highlight){var out=this.options.highlight(code,lang);if(out!=null&&out!==code){escaped=true;code=out}}if(!lang){return"<pre><code>"+(escaped?code:escape(code,true))+"\n</code></pre>"}return'<pre><code class="'+this.options.langPrefix+escape(lang,true)+'">'+(escaped?code:escape(code,true))+"\n</code></pre>\n"};Renderer.prototype.blockquote=function(quote){return"<blockquote>\n"+quote+"</blockquote>\n"};Renderer.prototype.html=function(html){return html};Renderer.prototype.heading=function(text,level,raw){return"<h"+level+' id="'+this.options.headerPrefix+raw.toLowerCase().replace(/[^\w]+/g,"-")+'">'+text+"</h"+level+">\n"};Renderer.prototype.hr=function(){return this.options.xhtml?"<hr/>\n":"<hr>\n"};Renderer.prototype.list=function(body,ordered){var type=ordered?"ol":"ul";return"<"+type+">\n"+body+"</"+type+">\n"};Renderer.prototype.listitem=function(text){return"<li>"+text+"</li>\n"};Renderer.prototype.paragraph=function(text){return"<p>"+text+"</p>\n"};Renderer.prototype.table=function(header,body){return"<table>\n"+"<thead>\n"+header+"</thead>\n"+"<tbody>\n"+body+"</tbody>\n"+"</table>\n"};Renderer.prototype.tablerow=function(content){return"<tr>\n"+content+"</tr>\n"};Renderer.prototype.tablecell=function(content,flags){var type=flags.header?"th":"td";var tag=flags.align?"<"+type+' style="text-align:'+flags.align+'">':"<"+type+">";return tag+content+"</"+type+">\n"};Renderer.prototype.strong=function(text){return"<strong>"+text+"</strong>"};Renderer.prototype.em=function(text){return"<em>"+text+"</em>"};Renderer.prototype.codespan=function(text){return"<code>"+text+"</code>"};Renderer.prototype.br=function(){return this.options.xhtml?"<br/>":"<br>"};Renderer.prototype.del=function(text){return"<del>"+text+"</del>"};Renderer.prototype.link=function(href,title,text){if(this.options.sanitize){try{var prot=decodeURIComponent(unescape(href)).replace(/[^\w:]/g,"").toLowerCase()}catch(e){return""}if(prot.indexOf("javascript:")===0||prot.indexOf("vbscript:")===0){return""}}var out='<a href="'+href+'"';if(title){out+=' title="'+title+'"'}out+=">"+text+"</a>";return out};Renderer.prototype.image=function(href,title,text){var out='<img src="'+href+'" alt="'+text+'"';if(title){out+=' title="'+title+'"'}out+=this.options.xhtml?"/>":">";return out};function Parser(options){this.tokens=[];this.token=null;this.options=options||marked.defaults;this.options.renderer=this.options.renderer||new Renderer;this.renderer=this.options.renderer;this.renderer.options=this.options}Parser.parse=function(src,options,renderer){var parser=new Parser(options,renderer);return parser.parse(src)};Parser.prototype.parse=function(src){this.inline=new InlineLexer(src.links,this.options,this.renderer);this.tokens=src.reverse();var out="";while(this.next()){out+=this.tok()}return out};Parser.prototype.next=function(){return this.token=this.tokens.pop()};Parser.prototype.peek=function(){return this.tokens[this.tokens.length-1]||0};Parser.prototype.parseText=function(){var body=this.token.text;while(this.peek().type==="text"){body+="\n"+this.next().text}return this.inline.output(body)};Parser.prototype.tok=function(){switch(this.token.type){case"space":return"";case"hr":return this.renderer.hr();case"heading":return this.renderer.heading(this.inline.output(this.token.text),this.token.depth,this.token.text);case"code":return this.renderer.code(this.token.text,this.token.lang,this.token.escaped);case"table":var header="",body="",i,row,cell,flags,j;cell="";for(i=0;i<this.token.header.length;i++){flags={header:true,align:this.token.align[i]};cell+=this.renderer.tablecell(this.inline.output(this.token.header[i]),{header:true,align:this.token.align[i]})
+}header+=this.renderer.tablerow(cell);for(i=0;i<this.token.cells.length;i++){row=this.token.cells[i];cell="";for(j=0;j<row.length;j++){cell+=this.renderer.tablecell(this.inline.output(row[j]),{header:false,align:this.token.align[j]})}body+=this.renderer.tablerow(cell)}return this.renderer.table(header,body);case"blockquote_start":var body="";while(this.next().type!=="blockquote_end"){body+=this.tok()}return this.renderer.blockquote(body);case"list_start":var body="",ordered=this.token.ordered;while(this.next().type!=="list_end"){body+=this.tok()}return this.renderer.list(body,ordered);case"list_item_start":var body="";while(this.next().type!=="list_item_end"){body+=this.token.type==="text"?this.parseText():this.tok()}return this.renderer.listitem(body);case"loose_item_start":var body="";while(this.next().type!=="list_item_end"){body+=this.tok()}return this.renderer.listitem(body);case"html":var html=!this.token.pre&&!this.options.pedantic?this.inline.output(this.token.text):this.token.text;return this.renderer.html(html);case"paragraph":return this.renderer.paragraph(this.inline.output(this.token.text));case"text":return this.renderer.paragraph(this.parseText())}};function escape(html,encode){return html.replace(!encode?/&(?!#?\w+;)/g:/&/g,"&amp;").replace(/</g,"&lt;").replace(/>/g,"&gt;").replace(/"/g,"&quot;").replace(/'/g,"&#39;")}function unescape(html){return html.replace(/&([#\w]+);/g,function(_,n){n=n.toLowerCase();if(n==="colon"){return":"}if(n.charAt(0)==="#"){return n.charAt(1)==="x"?String.fromCharCode(parseInt(n.substring(2),16)):String.fromCharCode(+n.substring(1))}return""})}function replace(regex,opt){regex=regex.source;opt=opt||"";return function self(name,val){if(!name){return new RegExp(regex,opt)}val=val.source||val;val=val.replace(/(^|[^\[])\^/g,"$1");regex=regex.replace(name,val);return self}}function noop(){}noop.exec=noop;function merge(obj){var i=1,target,key;for(;i<arguments.length;i++){target=arguments[i];for(key in target){if(Object.prototype.hasOwnProperty.call(target,key)){obj[key]=target[key]}}}return obj}function marked(src,opt,callback){if(callback||typeof opt==="function"){if(!callback){callback=opt;opt=null}opt=merge({},marked.defaults,opt||{});var highlight=opt.highlight,tokens,pending,i=0;try{tokens=Lexer.lex(src,opt)}catch(e){return callback(e)}pending=tokens.length;var done=function(err){if(err){opt.highlight=highlight;return callback(err)}var out;try{out=Parser.parse(tokens,opt)}catch(e){err=e}opt.highlight=highlight;return err?callback(err):callback(null,out)};if(!highlight||highlight.length<3){return done()}delete opt.highlight;if(!pending){return done()}for(;i<tokens.length;i++){(function(token){if(token.type!=="code"){return --pending||done()}return highlight(token.text,token.lang,function(err,code){if(err){return done(err)}if(code==null||code===token.text){return --pending||done()}token.text=code;token.escaped=true;--pending||done()})})(tokens[i])}return}try{if(opt){opt=merge({},marked.defaults,opt)}return Parser.parse(Lexer.lex(src,opt),opt)}catch(e){e.message+="\nPlease report this to https://github.com/chjj/marked.";if((opt||marked.defaults).silent){return"<p>An error occured:</p><pre>"+escape(e.message+"",true)+"</pre>"}throw e}}marked.options=marked.setOptions=function(opt){merge(marked.defaults,opt);return marked};marked.defaults={gfm:true,tables:true,breaks:false,pedantic:false,sanitize:false,smartLists:false,silent:false,highlight:null,langPrefix:"lang-",smartypants:false,headerPrefix:"",renderer:new Renderer,xhtml:false};marked.Parser=Parser;marked.parser=Parser.parse;marked.Renderer=Renderer;marked.Lexer=Lexer;marked.lexer=Lexer.lex;marked.InlineLexer=InlineLexer;marked.inlineLexer=InlineLexer.output;marked.parse=marked;if(typeof module!=="undefined"&&typeof exports==="object"){module.exports=marked}else{if(typeof define==="function"&&define.amd){define(function(){return marked})}else{this.marked=marked}}}).call(function(){return this||(typeof window!=="undefined"?window:global)}());
\ No newline at end of file