Review file locking refactor

Brief rewording, achors fix, metadata

doc/topics/git/lfs/index.md

@@ -109,9 +109,7 @@ To remove objects from LFS:
 
 ## File Locking
 
-> [Introduced](https://gitlab.com/gitlab-org/gitlab-foss/-/issues/35856) in GitLab 10.5.
-
-TODO
+See the documentation on [File Locking](../../../user/project/file_lock.md).
 
 ## Troubleshooting
 

doc/user/permissions.md

@@ -222,7 +222,7 @@ to learn more.
 
 The user that locks a file or directory is the only one that can edit and push their changes back to the repository where the locked objects are located.
 
-Read through the documentation on [permissions for File Locking](project/file_lock.md#permissions-on-file-locking) to learn more.
+Read through the documentation on [permissions for File Locking](project/file_lock.md#permissions) to learn more.
 
 ### Confidential Issues permissions