Merge pull request #5520 from mberdugo/Guidebook

upload guidebook - Yuval

Author: mberdugo

defender-xdr/TOC.yml

@@ -633,6 +633,8 @@
           href: alert-classification-password-spray-attack.md
       - name: Incident response playbooks
         href: /security/operations/incident-response-playbooks
+      - name: Customize incident responses
+        href: security-upload-guide.md
       - name: Ransomware playbooks
         items:
         - name: Detecting human-operated ransomware attacks with Microsoft Defender XDR