Update docfx.json

Author: shdyas

defender-for-iot/docfx.json

@@ -42,7 +42,7 @@
     "overwrite": [],
     "externalReference": [],
     "globalMetadata": {
-      "breadcrumb_path": "/breadcrumb/defender-for-iot/toc.json",
+      "breadcrumb_path": "/defender-for-iot/breadcrumb/toc.json",
       "feedback_system": "Standard",
       "permissioned-type": "public",
       "feedback_product_url": "https://techcommunity.microsoft.com/t5/security-compliance-and-identity/ct-p/MicrosoftSecurityandCompliance",
@@ -68,4 +68,4 @@
     "template": [],
     "dest": "defender-for-iot"
   }
-}
+}