diff --git a/doc/README.md b/doc/README.md
new file mode 100644
index 0000000..ee842b3
--- /dev/null
+++ b/doc/README.md
@@ -0,0 +1,2 @@
+# Pet
+
diff --git a/model/README.md b/model/README.md
new file mode 100644
index 0000000..ee842b3
--- /dev/null
+++ b/model/README.md
@@ -0,0 +1,2 @@
+# Pet
+
diff --git a/other/README.md b/other/README.md
new file mode 100644
index 0000000..ee842b3
--- /dev/null
+++ b/other/README.md
@@ -0,0 +1,2 @@
+# Pet
+
diff --git a/src/README.md b/src/README.md
new file mode 100644
index 0000000..ee842b3
--- /dev/null
+++ b/src/README.md
@@ -0,0 +1,2 @@
+# Pet
+