Update docs/agents/index.md

Co-authored-by: coderabbitai[bot] <136622811+coderabbitai[bot]@users.noreply.github.com>

Author: nezhar

docs/agents/index.md

@@ -147,7 +147,7 @@ The command prints the container name and returns immediately. You can also find
 vp list --running
 ```
 
-### Customising the container before starting the agent
+### Customizing the container before starting the agent
 
 A common workflow is to start detached, exec into the container to make adjustments, and then start the agent manually: