Update planner documentation for Teams channel

Author: JarbasHorst

api-reference/beta/resources/planner-overview.md

@@ -67,7 +67,7 @@ Users can upgrade their personal plans into group-based plans by [moving](../api
 
 ### Container type: Teams channel
 
-The Teams channel container type supports plans created in shared or private channels in Teams, where the channel is the container for the plan. Plans that are pinned in shared channels are deleted when the channel is deleted.
+The `teamsChannel` container type supports plans created in shared channels in Teams, where the channel is the container for the plan. Plans that are pinned in shared channels are deleted when the channel is deleted.
 
 To [create a new plan](../api/planner-post-plans.md) in the container of a Teams channel, set the **container** property on a [plan](plannerplan.md) object with **type** as `teamsChannel`, and the ID should be formatted as "{team-id}/channels/{channel-id}".
 
@@ -80,7 +80,7 @@ To [create a new plan](../api/planner-post-plans.md) in the container of a Teams
 }
 ```
 
-Alternatively, you can specify the URL for a shared or private channel in Teams.
+Alternatively, you can specify the URL for a shared channel in Teams.
 
 ```json
 {

api-reference/beta/resources/plannerplancontainer.md

@@ -24,7 +24,7 @@ Planner currently supports the container types listed in the following table. Wh
 |group| Plan is contained by a [group](group.md).| `https://graph.microsoft.com/beta/groups/<id>` |
 |project| Plan is contained by a Project from [Microsoft Project for the web](/project-for-the-web/projectforweb-admin-home). | Microsoft Project currently doesn't have a resource path on Microsoft Graph. Project details and members can be managed from [Microsoft Project](https://project.microsoft.com). |
 |roster| Plan is contained by a [plannerRoster](plannerroster.md). | `https://graph.microsoft.com/beta/planner/rosters/<id>` |
-|teamsChannel| Plan is contained by a [teamsChannel](channel.md). | `https://graph.microsoft.com/beta/teams/<teamId>/channels/<channelId>` |
+|teamsChannel| Plan is contained by a Teams [channel](channel.md). | `https://graph.microsoft.com/beta/teams/<teamId>/channels/<channelId>` |
 |user| Plan is contained by a [User](user.md) | `https://graph.microsoft.com/beta/users/<id>` |
 
 ## Properties