Update bundles/best_practices.rst

Co-authored-by: Oskar Stark <[email protected]>

Author: kbond

bundles/best_practices.rst

@@ -485,7 +485,7 @@ be defined explicitly.
 .. tip::
 
     If there is no intention for the service id to be used by the end user, you can
-    mark it as *hidden* by prefixing it with an dot (e.g. ``.acme_blog.logger``).
+    mark it as *hidden* by prefixing it with a dot (e.g. ``.acme_blog.logger``).
     This prevents the service from being listed in the default ``debug:container``
     command output.