clarify maximum level

doc/workflow/share_with_group.md

@@ -7,7 +7,7 @@ give a select group of users access to a project in a restricted manner.
 In a project go to the project settings -> groups.
 
 Now you can select a group that you want to share this project with and with
-which access level. Users in that group are able to access this project
-with the set access level.
+which maximum access level. Users in that group are able to access this project
+with their set group access level, up to the maximum level that you've set.
 
 ![Share a project with a group](share_with_group.png)