Create CONTRIBUTING.md

CONTRIBUTING.md

@@ -0,0 +1,17 @@
+# Contribution Guidelines
+
+Unfortunately, not every user script can be considered. The aim of the list is to provide a concise list of noteworthy user scripts and that fill a gap.
+
+
+Furthermore, please ensure your pull request follows the following guidelines:
+
+* Please search previous suggestions before making a new one, as yours may be a duplicate.
+* Please make an individual pull request for each suggestion.
+* Entries should be sorted in ascending alphabetical order, i.e. a to z.
+* New categories, or improvements to the existing categorization are welcome.
+* Keep descriptions short, simple and unbiased. 
+* End all descriptions with a full stop/period.
+* Check your spelling and grammar.
+* Make sure your text editor is set to remove trailing whitespace.
+
+Thank you for your suggestions!