add a large map sample to https://docs.microsoft.com/en-us/rest/api/logic/maps/create-or-update

Author: xuehongg

specification/logic/resource-manager/Microsoft.Logic/stable/2019-05-01/examples/IntegrationAccountLargeMaps_CreateOrUpdate.json

@@ -9,8 +9,7 @@
       "properties":{
          "mapType":"Xslt",
          "contentLink":{
-            "uri":"<Blob SAS URL of the map>",
-            "contentVersion":"1.0"
+            "uri":"<Blob SAS URL of the map>"
          },
          "contentType":"application/xml",
          "metadata":{}