Merge pull request #99472 from spelluru/labadmin1219

Lab Services admin guide

Author: megvanhuygen

articles/lab-services/classroom-labs/TOC.yml

@@ -28,6 +28,8 @@
       href: classroom-labs-scenarios.md
 - name: How-to guides
   items:
+  - name: Administrator guide
+    href: administrator-guide.md
   - name: Classroom labs - class types
     items:
     - name: Class types overview