updated CONTRIBUTING.md

CONTRIBUTING.md

@@ -11,10 +11,21 @@ You can contribute to plot_phylo in the following ways:
 - Forking the repository and improving the code
 - Improving documentation
 
+If contributing to plot_phylo, please ensure that you 
+
+* Add any new functionality to the README.md documentation, following the style of the rest of the document.
+* Edit function docstrings to include any new variables and include docstrings in the same style for any new functions.
+* Add comments to describe how your code works.
+* Edit the unit tests to include any new functionality.
+* Run unit tests in the root directoy as `pytest --cov=plot_phylo` then view the coverage html and ensure that they pass and that module file coverage is 100%.
+* Check the code is pep8 compliant.
+
+If you're unsure about any of these steps, please raise an issue and I can help you.
+
 ## Code of Conduct
 
 Please review our Code of Conduct before participating. Be kind and respectful to fellow contributors.
 
 ## License
 
-By contributing to [Your Project Name], you agree that your contributions will be licensed under the MIT License.
+By contributing to ploy_phylo, you agree that your contributions will be licensed under the MIT License.