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Author: ufechner7

CONTRIBUTING.md

@@ -16,4 +16,19 @@
 1. create a new branch
 1. push your changes to the branch
 1. create a draft pull request
-1. when you think it is ready, mark it as "ready for review" and invite a reviewer
+1. when you think it is ready, mark it as "ready for review" and invite a reviewer
+1. address the remarks of the reviewer
+1. check that all tests passed
+1. merge the pull request, choosing the `squash` option
+
+It is OK to merge your own pull request without review if you are very sure it will not cause any problems. If in doubt, ask on Telegram.
+
+#### Commit messages
+1. shall start with capital letter
+1. imperative form
+
+**Examples**
+- Fix division-by-zero error
+- Improve docstrings
+- Implement feature #23
+- Add function cool_feature()