Fixing typo in TOC

Author: JasonWHowell

articles/azure-databricks/TOC.yml

@@ -40,7 +40,7 @@
     href: databricks-cli-from-azure-cloud-shell.md
   - name: Use BI tools
     href: https://docs.azuredatabricks.net/user-guide/bi/index.html
-  - name: Regional disater recovery
+  - name: Plan disaster recovery
     href: howto-regional-disaster-recovery.md
 - name: Reference
   items: