Merge pull request MicrosoftDocs#315 from cid109/cid109-patch-proper

add docs for expense-report, helpdesk sample apps [canvas]

Author: v-shils

powerapps-docs/maker/TOC.yml

@@ -41,6 +41,12 @@
       href: ./canvas-apps/share-app.md
     - name: Embed an app in Power BI
       href: ./canvas-apps/embed-powerapps-powerbi.md
+  - name: Samples
+    items:
+    - name: Expense Report app
+      href: ./canvas-apps/expense-report-install.md
+    - name: Help Desk app
+      href: ./canvas-apps/help-desk-install.md
   - name: Concepts
     items:
     - name: Get started with formulas