Removed hyphen lines from headings

The long lines of hyphens in the headings doesn't look so good on docs.microsoft.com.

Author: garycentric

skype/skype-ps/skype/New-CsAutoAttendantCallableEntity.md

@@ -37,37 +37,37 @@ In order to setup a shared voicemail, an Office 365 Group that can receive exter
 
 ## EXAMPLES
 
-### -------------------------- Example 1 --------------------------
+### Example 1
 ```powershell
 $callableEntity = New-CsAutoAttendantCallableEntity -Identity "9bad1a25-3203-5207-b34d-1bd933b867a5" -Type User
 ```
 
 This example creates a user callable entity.
 
-### -------------------------- Example 2 --------------------------
+### Example 2
 ```powershell
 $callableEntity = New-CsAutoAttendantCallableEntity -Identity "tel:+1234567890" -Type ExternalPSTN
 ```
 
 This example creates an ExternalPSTN callable entity.
 
-### -------------------------- Example 3 --------------------------
+### Example 3
 ```powershell
 $operatorObjectId = (Get-CsOnlineUser [email protected]).ObjectId
 $callableEntity = New-CsAutoAttendantCallableEntity -Identity $operatorObjectId -Type User
 ```
 
 This example gets a user object using Get-CsOnlineUser cmdlet. We then use the AAD ObjectId of that user object to create a user callable entity.
 
-### -------------------------- Example 4 --------------------------
+### Example 4
 ```powershell
 $callableEntityId = (Find-CsOnlineApplicationInstance -SearchQuery "Main Auto Attendant") -MaxResults 1 | Select-Object -Property Id
 $callableEntity = New-CsAutoAttendantCallableEntity -Identity $callableEntityId -Type ApplicationEndpoint
 ```
 
 This example gets an application instance by name using Find-CsOnlineApplicationInstance cmdlet. We then use the AAD ObjectId of that application instance to create an application endpoint callable entity.
 
-### -------------------------- Example 5 --------------------------
+### Example 5
 ```powershell
 $callableEntityGroup = Find-CsGroup -SearchQuery "Main Auto Attendant" -ExactMatchOnly $true -MailEnabledOnly $true
 $callableEntity = New-CsAutoAttendantCallableEntity -Identity $callableEntityGroup -Type SharedVoicemail -EnableTranscription