Add contribution guidelines

CONTRIBUTING.md

@@ -0,0 +1,15 @@
+# Contribution Guidelines
+
+You want to contribute to Awesome MongoDB? Great!
+
+Please ensure your pull request adheres to the following guidelines:
+
+- Make an individual pull request for each suggestion.
+- Use the following format: `[Resource Name](link) - Short description`
+- Don't repeat the resource name in the description.
+- Link additions should be added in alphabetical order to the relevant category.
+- Check your spelling and grammar.
+- New categories or improvements to the existing categorization are welcome.
+- The pull request and commit should have a useful title.
+
+Thank you for your suggestions!

README.md

@@ -4,7 +4,7 @@
 
 > A curated list of awesome MongoDB resources, libraries, tools and applications
 
-Inspired by the [awesome](https://github.com/sindresorhus/awesome) list thing. Feel free to improve this list by contributing!
+Inspired by the [awesome](https://github.com/sindresorhus/awesome) list thing. Feel free to improve this list by [contributing](CONTRIBUTING.md)!
 
 ## Table of Contents
  - [Resources](#resources)