docs: Move contributing to the wiki.

CONTRIBUTING.md

@@ -1,50 +0,0 @@
-# Contributing
-
-Welcome to `pywal`, here's how you can contribute.
-
-
-### Environment Details
-
-- Linux
-- Python `3.6`
-
-
-### Development Dependencies
-
-All contributions and changes to `wal` must pass both `flake8` and `pylint` linters unless you have ample reason for disabling a specific message. Travis.ci will automatically run the tests every time you push a new commit to a Pull Request on the repo.
-
-```py
-pip install flake8 pylint
-```
-
-
-### Tests
-
-`wal` can be tested by running `python setup.py test` in the root directory of the repo.
-
-
-### Commit Message Style
-
-I'm not fussed if you don't follow this one too closely as I'm guilty of forgetting at times. The commit style that should be used on this repo is as follows:
-
-```sh
-# topic: Short sentence about changes. Closes #issue_number
-# Example:
-git commit -m "export: Added export format for emacs. Closes #11"
-```
-
-
-### Comment Style
-
-All comments must start with a capital letter and end with a full stop `.`.
-
-
-### Running `pywal`
-
-You can run `pywal` without properly installing it by using the following command:
-
-```sh
-# From the repo directory.
-python -m pywal
-```
-