Update toc.yml

Author: m-hartmann

support/dynamics-365/field-service/toc.yml

@@ -84,4 +84,6 @@
   items: 
     - name: Issue with cascading crew changes when assigning a booking
       href: scheduling/cascade-crew-changes-booking.md
+    - name: Missing form context on bookable resource forms
+      href: scheduling/missing-form-context-bookable-resource.md