Mention Microsoft teams service in project services doc

doc/user/project/integrations/microsoft_teams.md

-# Microsoft Teams Service
+# Microsoft Teams service
 
 ## On Microsoft Teams
 
-To enable Microsoft Teams integration you must create an incoming webhook integration on Microsoft Teams by following the steps described in this [document](https://msdn.microsoft.com/en-us/microsoft-teams/connectors)
+To enable Microsoft Teams integration you must create an incoming webhook integration on Microsoft Teams by following the steps described in this [document](https://msdn.microsoft.com/en-us/microsoft-teams/connectors).
 
 ## On GitLab
 
@@ -30,4 +30,4 @@ At the end fill in your Microsoft Teams details:
 
 After you are all done, click **Save changes** for the changes to take effect.
 
-![Microsoft Teams configuration](img/microsoft_teams_configuration.png)
+![Microsoft Teams configuration](img/microsoft_teams_configuration.png)
\ No newline at end of file

doc/user/project/integrations/project_services.md

@@ -47,6 +47,7 @@ Click on the service links to see further configuration instructions and details
 | [Kubernetes](kubernetes.md) | A containerized deployment service |
 | [Mattermost slash commands](mattermost_slash_commands.md) | Mattermost chat and ChatOps slash commands |
 | [Mattermost Notifications](mattermost.md) | Receive event notifications in Mattermost |
+| [Microsoft teams](microsoft_teams.md) |  Receive notifications for actions that happen on GitLab into a room on Microsoft Teams using Office 365 Connectors |
 | Pipelines emails | Email the pipeline status to a list of recipients |
 | [Slack Notifications](slack.md) | Receive event notifications in Slack |
 | [Slack slash commands](slack_slash_commands.md) | Slack chat and ChatOps slash commands |