Arc-specific feedback link for Arc topics

Author: JnHs

docfx.json

@@ -402,6 +402,7 @@
         "articles/app-service-mobile/**/*.md": "https://github.com/Azure/azure-mobile-apps/issues",
         "articles/automation/**/*.md": "https://feedback.azure.com/d365community/forum/8ddd03a2-0225-ec11-b6e6-000d3a4f0858",
         "articles/availability-zones/**/*.md": "https://feedback.azure.com/d365community/forum/79b1327d-d925-ec11-b6e6-000d3a4f06a4",
+        "articles/azure-arc/**/*.md": "https://feedback.azure.com/d365community/forum/5c778dec-0625-ec11-b6e6-000d3a4f0858",
         "articles/azure-app-configuration/**/*.md": "https://github.com/Azure/AppConfiguration/issues",
         "articles/azure-cache-for-redis/**/*.md": "https://feedback.azure.com/d365community/forum/a96a82f3-0c25-ec11-b6e6-000d3a4f07b8",
         "articles/azure-databricks/**/*.md": "https://feedback.azure.com/d365community/forum/2efba7dc-ef24-ec11-b6e6-000d3a4f0da0",