diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 6e9cac5..58b88da 100644
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -2,6 +2,9 @@
 
 ## Contributing :
 * Open an issue before work to hard
-* Work on the develop branch
+* **Work on the develop branch**
+* **Use tab for identation**
+* **Preserve identation on empty line**
+* **Test your changes (archdi -t github-username archdi-pkg-branchname)**
 
- 
+- [ ] I've read these rules before submitting my PR.