diff --git a/contributing.md b/contributing.md
index 1608259..ead7fdc 100644
--- a/contributing.md
+++ b/contributing.md
@@ -2,7 +2,7 @@
 
 Please note that this project is released with a [Contributor Code of Conduct](https://github.com/spring-projects/spring-framework/blob/master/CODE_OF_CONDUCT.adoc). By participating in this project you agree to abide by its terms.
 
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+- Do not commit on README, use source.md !
 
 Ensure your pull request adheres to the following guidelines: