Add 'Accept merge request' to permissions table

doc/user/permissions.md

@@ -31,7 +31,7 @@ The following table depicts the various user permission levels in a project.
 | See a commit status                   |         | ✓          | ✓           | ✓        | ✓      |
 | See a container registry              |         | ✓          | ✓           | ✓        | ✓      |
 | See environments                      |         | ✓          | ✓           | ✓        | ✓      |
-| Manage merge requests                 |         |            | ✓           | ✓        | ✓      |
+| Manage/Accept merge requests          |         |            | ✓           | ✓        | ✓      |
 | Create new merge request              |         |            | ✓           | ✓        | ✓      |
 | Create new branches                   |         |            | ✓           | ✓        | ✓      |
 | Push to non-protected branches        |         |            | ✓           | ✓        | ✓      |