Corrected broken links in az.network ref docs (#22368)

Co-authored-by: Mike F. Robbins <[email protected]>

Author: mikefrobbins

src/Network/Network/help/New-AzRouteMapRule.md

@@ -190,6 +190,6 @@ This cmdlet supports the common parameters: -Debug, -ErrorAction, -ErrorVariable
 
 [New-AzRouteMap](./New-AzRouteMap.md)
 
-[New-AzRouteMapRuleAction](./New-RouteMapRuleAction.md)
+[New-AzRouteMapRuleAction](./New-AzRouteMapRuleAction.md)
 
 [New-AzRouteMap](./New-AzRouteMap.md)