diff --git a/doc.zih.tu-dresden.de/docs/contrib/content_rules.md b/doc.zih.tu-dresden.de/docs/contrib/content_rules.md
index 74a2deada70e1e070ace90a6c56c2130c29c47e0..0fb957bd1dd62c90fcec041edef83f1eba83640e 100644
--- a/doc.zih.tu-dresden.de/docs/contrib/content_rules.md
+++ b/doc.zih.tu-dresden.de/docs/contrib/content_rules.md
@@ -59,7 +59,7 @@ or via [Email](mailto:hpcsupport@zih.tu-dresden.de).
   addressing him/her directly:
     * Example: Use `You can/should ...` instead of `Users can/should ...`
     * Example: Use `Your contribution is highly welcome` instead of `Contributions from user-side
-      are highly welcome`
+      are highly welcome"
 * Be brief! Provide the main idea/commands first, and special cases later. If it is not necessary to
   know how a special piece of software works, don't explain it.
 * Provide the often-used commands first.