updated breadcrumbs

Author: diannegali

defender-xdr/breadcrumb/toc.yml

@@ -12,6 +12,15 @@
   - name: Microsoft Defender XDR
     tocHref: /unified-secops-platform/
     topicHref: /defender-xdr/index
+  - name: Microsoft Defender XDR
+    tocHref: /defender-for-endpoint/
+    topicHref: /defender-xdr/index
+  - name: Microsoft Defender XDR
+    tocHref: /defender-office-365/
+    topicHref: /defender-xdr/index
+  - name: Microsoft Defender XDR
+    tocHref: /defender-cloud-apps/
+    topicHref: /defender-xdr/index  
 
 ## Azure override
 - name: 'Microsoft Defender'