[init_cell] PR code review corrections

Author: jcb91

CHANGELOG.md

@@ -21,6 +21,9 @@ Unreleased (aka. GitHub master)
 This is where each new PR to the project should add a summary of its changes,
 which makes it much easier to fill in each release's changelog :)
 
+- Added CONTRIBUTING.md
+   [#1224](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1224)
+   [@consideratio](https://github.com/consideratio)
 
 0.4.0
 -----
@@ -47,9 +50,6 @@ Repo-level stuff:
    [#1200](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1200),
    [#1201](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1201)
    [@jcb91](https://github.com/jcb91)
-- Added CONTRIBUTION.md
-   [#1224](https://github.com/ipython-contrib/jupyter_contrib_nbextensions/pull/1224)
-   [@consideratio](https://github.com/consideratio)
 
 New features and bugfixes:
 

CONTRIBUTING.md

@@ -1,6 +1,6 @@
 # Contributing to jupyter notebook nbextensions
 
-We are super happy that you intend to contribute to the nbextensions! You can discuss improvements in issues and improvement them in pull requests.
+We are super happy that you intend to contribute to the nbextensions! You can discuss improvements in issues and implement them in pull requests.
 
 ## Create an issue
 
@@ -22,7 +22,9 @@ cd jupyter_contrib_nbextensions
 ```shell
 # run from the main directory, where setup.py is
 pip install --editable .
-jupyter-contrib-nbextension install --symlink --sys-prefix
+
+# on windows, remove the --symlink flag and run the command in between changes
+jupyter-contrib-nbextension install --sys-prefix --symlink 
 ```
 
 ## Create an extension

MANIFEST.in

@@ -1,6 +1,7 @@
 # explicit includes
 include COPYING.rst
 include README.md
+include CONTRIBUTING.md
 include CHANGELOG.md
 include tox.ini
 include .bumpversion.cfg