Updated CONTRIBUTING.md

stanislavulrych · stanislavulrych · commit 5903999d97fd · 2020-02-05T14:21:42.000+01:00
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
@@ -1,3 +1,7 @@
 Contributions are welcome, including code, documentation, and examples. 
 
-GitHub issues and PRs are the preferred way to receive contributions. 
+## How to contribute
+
+GitHub issues and PRs are the preferred way to receive contributions. 
+
+To make a PR from a separate branch which is rebased to up-to-date master.
