Cmdlet level breaking chacnge announcement (#28461)

Author: Pan-Qi

documentation/development-docs/breakingchange-for-autogen-module.md

@@ -9,8 +9,6 @@ Breaking changes and preview messages for auto gen cmdlets are added through dir
 
 ## Case 1 — Module is deprecated
 
- 
-
 ```yaml
 - where:
     verb: (.*)
@@ -112,6 +110,20 @@ Breaking changes and preview messages for auto gen cmdlets are added through dir
       estimated-ga-date: 2023-09-30
 ```
 
+## Case 8 — Breaking change for a cmdlet(No parameter specified; only apply description at the cmdlet level)
+
+```yaml
+- where:
+    verb: Remove
+    subject: VNetPeering
+  set:
+    breaking-change:
+      deprecated-by-version: 5.0.0
+      deprecated-by-azversion: 20.0.0
+      change-effective-date: 2022/05/30
+      change-description: Breaking change message applies at the cmdlet level
+```
+
 # For customized cmdlets
 
 To add breaking changes or preview messages for a customized cmdlets, you will need to add related attributes in code directly. And following are some common cases.