Added contributing guide and issue template

.github/CONTRIBUTING.md

@@ -0,0 +1,35 @@
+# Moviepy's contribution guidelines
+
+## Keeping/Improving code quality
+
+- Respect PEP8 standards!
+- Just the right amount of comments. Try to write auto-documented code (with very explicit variable names).
+- If you introduce a new functionality or fix a subtle bug, document it in the docstring/code.
+
+## Using Github
+
+- Keep the discussions on Github to their minimum. Remember that many people receive these messages.
+  - Opinions are OK.
+  - Avoid messages that don't bring the discussion forward ("Thanks", etc.)
+  - For proper discussions, use the [Moviepy Gitter](https://gitter.im/Movie-py). If these discussions lead to a decision (merge/reject), leave a message on the Moviepy issue that summarizes the reasons of the decision.
+- Do not push any commit that changes the API without previous discussion.
+
+## Preparing for development
+- Fork moviepy using the button in the top right corner
+- Clone your fork: `git clone https://github.com/yourname/moviepy.git`
+- Add the main repository as a remote: `git add remote upstream https://github.com/Zulko/moviepy.git`
+
+## Standard workflow
+- Pull any changes made to the main repository: `git pull upstream master`
+- Push these changes to your fork: `git push`
+- Always keep your `master` branch up-to-date with `upstream master` and don't develop features on it
+- To make a change
+  - Create a new local branch: `git checkout -b branchname`
+  - Make any changes in it
+  - Run the test suite over it to expose any problems: `python3 setup.py test`
+  - Push the local branch to your fork on github: `git push -u origin branchname`
+  - Go to github.com/yourname/moviepy and it will display 'Recently pushed branches' giving you the option to make a Pull Request to the main repo
+  - Fill in any details for your PR and submit
+  - The test suite will automatically be ran over your submission
+  - A moviepy collaborator will review your code, and help you to get it merge-ready
+- You don't have to have finished your feature/bugfix before submitting a PR; just mention that it is a work-in-progress

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,21 @@
+<!--
+Thank you for submitting this issue! If you are not reporting a bug, please delete all of the following text.
+If you are reporting a bug, please ensure moviepy is updated to the latest version before submitting, as some bugs may only be present on older versions
+-->
+
+### Expected Behavior
+
+
+### Actual Behavior
+
+
+### Steps to Reproduce the Problem
+<!-- Please include code that demonstrates this problem so that we can reproduce it. For advice on how to do this, see https://stackoverflow.com/help/mcve -->
+
+
+### Specifications
+
+  - Python Version:
+  - Moviepy Version
+  - Platform Name:
+  - Platform Version:

README.rst

@@ -154,11 +154,11 @@ If you opt to run the test suite manually, you can install the dependencies via:
 Contribute
 ----------
 
-MoviePy is open-source software originally written by Zulko_ and released under the MIT licence. The project is hosted on GitHub_, where everyone is welcome to contribute, ask for help or simply give feedback.
+MoviePy is open-source software originally written by Zulko_ and released under the MIT licence. The project is hosted on GitHub_, where everyone is welcome to contribute, ask for help or simply give feedback. Please read our `Contributing Guidelines`_ for more information about how to contribute!
 
-You can also discuss the project on Reddit_ (preferred over GitHub issues for usage/examples), Gitter_ or the mailing list [email protected].
+You can also discuss the project on Reddit_ or Gitter_. These are preferred over GitHub issues for usage questions and examples.
 
-We have a list of tags used in our `Tag Wiki`_. The 'Pull Requests' tags are well defined, and all PRs should fall under exactly one of these.  The 'Issues' tags are less precise, and may not be a complete list.
+We have a list of labels used in our `Label Wiki`_. The 'Pull Requests' labels are well defined, and all PRs should fall under exactly one of these.  The 'Issues' labels are less precise, and may not be a complete list.
 
 
 Maintainers
@@ -176,7 +176,8 @@ Maintainers
 .. _gallery: http://zulko.github.io/moviepy/gallery.html
 .. _documentation: http://zulko.github.io/moviepy/
 .. _`download MoviePy`: https://github.com/Zulko/moviepy
-.. _`Tag Wiki`: https://github.com/Zulko/moviepy/wiki/Tag-Wiki
+.. _`Label Wiki`: https://github.com/Zulko/moviepy/wiki/Label-Wiki
+.. _Contributing Guidelines: https://github.com/Zulko/moviepy/blob/master/README.rst
 
 .. Websites, Platforms
 .. _Reddit: http://www.reddit.com/r/moviepy/