updating win_chocolatey.py docs examples (#40101)

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Edit to the notepadplusplus example. 

Removed `.install` as per chocolatey documentation, the package is just notepadplusplus. 

docs found here: https://chocolatey.org/packages/notepadplusplus
+label: docsite_pr

lib/ansible/modules/windows/win_chocolatey.py

@@ -150,7 +150,7 @@ EXAMPLES = r'''
 
 - name: Install notepadplusplus version 6.6
   win_chocolatey:
-    name: notepadplusplus.install
+    name: notepadplusplus
     version: '6.6'
 
 - name: Install git from specified repository