Docs: Fix typo in contributing regarding normalize.css

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
index 29cdc631b5269860f76d8769c53026ab1edfce81..a52e6d1aa36196a40f153988670cb28d92256be3 100644 (file)
--- a/CONTRIBUTING.md
+++ b/CONTRIBUTING.md
@@ -26,7 +26,7 @@ restrictions:
 
 * Please **do not** open issues or pull requests regarding the code in
   [`Normalize`](https://github.com/necolas/normalize.css) (open them in
-  their respective repositories).
+  its repository).
 * Please **do not** open issues regarding the official themes offered on <http://themes.getbootstrap.com/>. Instead, please email any questions or feedback regarding those themes to `themes AT getbootstrap DOT com`.