update docfx for testing 6.0.0

Author: jmazzotta

docfx.json

@@ -134,6 +134,18 @@
                 "version": "azurermps-5.7.0",
                 "dest": "azure"
             },
+            {
+                "files": [
+                    "**/*.yml",
+                    "**/*.md"
+                ],
+                "src": "azurermps-6.0.0",
+                "version": "azurermps-6.0.0",
+                "exclude": [
+                    "docs-conceptual/**"
+                ],
+                "dest": "module"
+            },
             {
                 "files": [
                     "**/*.yml",