Fix broken link

docs/source/changelog.rst

@@ -145,7 +145,7 @@ There is a new cell toolbar for adding *cell tags* (:ghpull:`2048`):
 
 Cell tags are a lightweight way to customise the behaviour of tools working with
 notebooks; we're working on building support for them into tools like `nbconvert
-<http://nbconvert.readthedocs.io/en/latest/>`__ and `nbval
+<https://nbconvert.readthedocs.io/en/latest/>`__ and `nbval
 <https://github.com/computationalmodelling/nbval>`__. To start using tags,
 select ``Tags`` in the ``View > Cell Toolbar`` menu in a notebook.
 
@@ -226,7 +226,7 @@ Other additions
   extensions(:ghpull:`2108`).
 
 - The notebook server now supports the `bundler API
-  <http://jupyter-notebook.readthedocs.io/en/latest/extending/bundler_extensions.html>`__
+  <https://jupyter-notebook.readthedocs.io/en/latest/extending/bundler_extensions.html>`__
   from the `jupyter_cms incubator project
   <https://github.com/jupyter-incubator/contentmanagement>`__ (:ghpull:`1579`).
 

docs/source/links.txt

@@ -25,8 +25,8 @@
 .. _notebook_p1: https://nbviewer.jupyter.org/github/jupyter/notebook/blob/master/docs/source/examples/Notebook/Running%20Code.ipynb
 
 .. Other python projects
-.. _matplotlib: http://matplotlib.org
-.. _nbviewer: http://nbviewer.jupyter.org
+.. _matplotlib: https://matplotlib.org
+.. _nbviewer: https://nbviewer.jupyter.org
 .. _nbconvert: https://nbconvert.readthedocs.io/en/latest/
 
 .. Other tools and projects

docs/source/notebook.rst

@@ -219,7 +219,7 @@ drop-down on the toolbar (which will be "Code", initially), or via
 
 For more information on the different things you can do in a notebook,
 see the `collection of examples
-<http://nbviewer.jupyter.org/github/jupyter/notebook/tree/master/docs/source/examples/Notebook/>`_.
+<https://nbviewer.jupyter.org/github/jupyter/notebook/tree/master/docs/source/examples/Notebook/>`_.
 
 Code cells
 ~~~~~~~~~~
@@ -266,7 +266,7 @@ the LaTeX portions are automatically rendered in the HTML output as equations
 with high quality typography. This is made possible by MathJax_, which
 supports a `large subset <mathjax_tex>`_ of LaTeX functionality
 
-.. _mathjax_tex: http://docs.mathjax.org/en/latest/tex.html
+.. _mathjax_tex: https://docs.mathjax.org/en/latest/tex.html
 
 Standard mathematics environments defined by LaTeX and AMS-LaTeX (the
 `amsmath` package) also work, such as
@@ -373,7 +373,7 @@ Installing kernels
 ------------------
 
 For information on how to install a Python kernel, refer to the
-`IPython install page <http://ipython.org/install.html>`__.
+`IPython install page <https://ipython.org/install.html>`__.
 
 Kernels for other languages can be found in the `IPython wiki
 <https://github.com/ipython/ipython/wiki/IPython%20kernels%20for%20other%20languages>`_.

docs/source/template.tpl

@@ -2,7 +2,7 @@
 
 {% macro notebooklink() -%}
 
-`View the original notebook on nbviewer <http://nbviewer.jupyter.org/github/jupyter/notebook/blob/master/docs/{{ resources['metadata']['path'] }}/{{ resources['metadata']['name'] | replace(' ', '%20') }}.ipynb>`__
+`View the original notebook on nbviewer <https://nbviewer.jupyter.org/github/jupyter/notebook/blob/master/docs/{{ resources['metadata']['path'] }}/{{ resources['metadata']['name'] | replace(' ', '%20') }}.ipynb>`__
 
 
 {%- endmacro %}