Update docs

Author: vors

docs/Merge-MarkdownHelp.md

@@ -12,12 +12,11 @@ Merge multiply markdown version of the same cmdlets into a single markdown file.
 ## SYNTAX
 
 ```
-Merge-MarkdownHelp [-Path] <String[]> [-OutputPath] <String> [[-Encoding] <Encoding>]
- [-ExplicitApplicableIfAll] [-Force] [[-MergeMarker] <String>]
+Merge-MarkdownHelp [-Path] <String[]> [-OutputPath] <String> [-Encoding <Encoding>] [-ExplicitApplicableIfAll]
+ [-Force] [[-MergeMarker] <String>] [<CommonParameters>]
 ```
 
 ## DESCRIPTION
-
 If we have similar modules, or different version of the same module,
 we are likely to have a lot of duplicated markdown in them.
 
@@ -148,16 +147,17 @@ Accept pipeline input: True (ByValue)
 Accept wildcard characters: True
 ```
 
+### CommonParameters
+This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable, -InformationAction, -InformationVariable, -OutVariable, -OutBuffer, -PipelineVariable, -Verbose, -WarningAction, and -WarningVariable. For more information, see about_CommonParameters (http://go.microsoft.com/fwlink/?LinkID=113216).
+
 ## INPUTS
 
 ### System.String[]
 
-
 ## OUTPUTS
 
 ### System.IO.FileInfo[]
 
-
 ## NOTES
 
 ## RELATED LINKS