Update links to moved docs

doc/api/api_resources.md

@@ -42,7 +42,7 @@ The following API resources are available in the project context:
 | [Events](events.md)                                                 | `/projects/:id/events` (also available for users and standalone)                                                                                                                                      |
 | [Feature Flags](feature_flags.md)                                   | `/projects/:id/feature_flags`                                                                                                                                                                         |
 | [Feature Flag User Lists](feature_flag_user_lists.md)               | `/projects/:id/feature_flags_user_lists`                                                                                                                                                              |
-| [Integrations](integrations.md)                                     | `/projects/:id/integrations`                                                                                                                                                                          |
+| [Integrations](integrations.md) (Formerly "services")               | `/projects/:id/integrations`                                                                                                                                                                          |
 | [Invitations](invitations.md)                                       | `/projects/:id/invitations` (also available for groups)                                                                                                                                              |
 | [Issues](issues.md)                                                 | `/projects/:id/issues` (also available for groups and standalone)                                                                                                                                     |
 | [Issues Statistics](issues_statistics.md)                           | `/projects/:id/issues_statistics` (also available for groups and standalone)                                                                                                                          |
@@ -84,7 +84,6 @@ The following API resources are available in the project context:
 | [Resource label events](resource_label_events.md)                   | `/projects/:id/issues/.../resource_label_events`, `/projects/:id/merge_requests/.../resource_label_events` (also available for groups)                                                                |
 | [Runners](runners.md)                                               | `/projects/:id/runners` (also available standalone)                                                                                                                                                   |
 | [Search](search.md)                                                 | `/projects/:id/search` (also available for groups and standalone)                                                                                                                                     |
-| [Services](services.md) (renamed to [Integrations](integrations.md)) | `/projects/:id/services`                                                                                                                                                                             |
 | [Tags](tags.md)                                                     | `/projects/:id/repository/tags`                                                                                                                                                                       |
 | [User-starred metrics dashboards](metrics_user_starred_dashboards.md ) | `/projects/:id/metrics/user_starred_dashboards`                                                                                                                             |
 | [Visual Review discussions](visual_review_discussions.md) **(PREMIUM)** | `/projects/:id/merge_requests/:merge_request_id/visual_review_discussions`                                                                                                                        |

doc/update/plan_your_upgrade.md

@@ -145,7 +145,7 @@ version prior to upgrading the application server.
 
 If you're using Geo:
 
-- Review [Geo upgrade documentation](../administration/geo/replication/updating_the_geo_nodes.md).
+- Review [Geo upgrade documentation](../administration/geo/replication/updating_the_geo_sites.md).
 - Read about the [Geo version-specific update instructions](../administration/geo/replication/version_specific_updates.md).
 - Review Geo-specific steps when [updating the database](https://docs.gitlab.com/omnibus/settings/database.html#upgrading-a-geo-instance).
 - Create an upgrade and rollback plan for _each_ Geo node (primary and each secondary).

doc/user/project/index.md

@@ -146,7 +146,7 @@ There are numerous [APIs](../../api/index.md) to use with your projects:
 - [Markdown](../../api/markdown.md)
 - [Merge Requests](../../api/merge_requests.md)
 - [Milestones](../../api/milestones.md)
-- [Services](../../api/services.md)
+- [Services](../../api/integrations.md)
 - [Snippets](../../api/project_snippets.md)
 - [Templates](../../api/project_templates.md)
 - [Traffic](../../api/project_statistics.md)

doc/user/project/integrations/irker.md

@@ -10,7 +10,7 @@ GitLab provides a way to push update messages to an irker server. When
 configured, pushes to a project trigger the service to send data directly
 to the irker server.
 
-See also the [irker integration API documentation](../../../api/services.md).
+See also the [irker integration API documentation](../../../api/integrations.md).
 
 For more information, see the [irker project homepage](https://gitlab.com/esr/irker).