Merge branch 'docs/update-project-api' into 'master'

Include merge method link in attribute description

Closes #64282

See merge request gitlab-org/gitlab-ce!30492

doc/api/projects.md

@@ -727,7 +727,7 @@ POST /projects
 | `public_builds` | boolean | no | If `true`, jobs can be viewed by non-project-members |
 | `only_allow_merge_if_pipeline_succeeds` | boolean | no | Set whether merge requests can only be merged with successful jobs |
 | `only_allow_merge_if_all_discussions_are_resolved` | boolean | no | Set whether merge requests can only be merged when all the discussions are resolved |
-| `merge_method` | string | no | Set the merge method used |
+| `merge_method` | string | no | Set the [merge method](#project-merge-method) used |
 | `lfs_enabled` | boolean | no | Enable LFS |
 | `request_access_enabled` | boolean | no | Allow users to request member access |
 | `tag_list`    | array   | no       | The list of tags for a project; put array of tags, that should be finally assigned to a project |
@@ -784,7 +784,7 @@ POST /projects/user/:user_id
 | `public_builds` | boolean | no | If `true`, jobs can be viewed by non-project-members |
 | `only_allow_merge_if_pipeline_succeeds` | boolean | no | Set whether merge requests can only be merged with successful jobs |
 | `only_allow_merge_if_all_discussions_are_resolved` | boolean | no | Set whether merge requests can only be merged when all the discussions are resolved |
-| `merge_method` | string | no | Set the merge method used |
+| `merge_method` | string | no | Set the [merge method](#project-merge-method) used |
 | `lfs_enabled` | boolean | no | Enable LFS |
 | `request_access_enabled` | boolean | no | Allow users to request member access |
 | `tag_list`    | array   | no       | The list of tags for a project; put array of tags, that should be finally assigned to a project |
@@ -841,7 +841,7 @@ PUT /projects/:id
 | `public_builds` | boolean | no | If `true`, jobs can be viewed by non-project-members |
 | `only_allow_merge_if_pipeline_succeeds` | boolean | no | Set whether merge requests can only be merged with successful jobs |
 | `only_allow_merge_if_all_discussions_are_resolved` | boolean | no | Set whether merge requests can only be merged when all the discussions are resolved |
-| `merge_method` | string | no | Set the merge method used |
+| `merge_method` | string | no | Set the [merge method](#project-merge-method) used |
 | `lfs_enabled` | boolean | no | Enable LFS |
 | `request_access_enabled` | boolean | no | Allow users to request member access |
 | `tag_list`    | array   | no       | The list of tags for a project; put array of tags, that should be finally assigned to a project |