diff --git a/README.md b/README.md
index 9274d0c..1b1400f 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,9 @@ Contributing
 
 Contributions are welcome, just make sure you follow the guidelines:
 
+ * Completions are not accepted when already available in their available project.
+ * Please do not just copy/paste someone else completion, ask before.
+ * Completions only partially implemented are not accepted.
  * Please add a header containing authors, license info, status and origin of the script (example [here](src/_ack)).
  * Please try to follow [Zsh completion style guide](https://github.com/zsh-users/zsh/blob/master/Etc/completion-style-guide).
  * Send a pull request or ask for committer access.
@@ -50,4 +53,3 @@ Contributions are welcome, just make sure you follow the guidelines:
 License
 -------
 See each file for license details.
-