Merge pull request #89776 from hrasheed-msft/hdi_faq2

HDInsight FAQ edits

Author: PMEds28

articles/hdinsight/TOC.yml

@@ -219,7 +219,7 @@
         href: ./hdinsight-release-notes.md    
       - name: HDInsight 3.6 full release notes
         href: ./hdinsight-release-notes-archive.md 
-    - name: FAQ
+    - name: Frequently asked questions (FAQ)
       href: ./hdinsight-faq.md
     - name: Migrate to granular role-based access for cluster configurations
       href: ./hdinsight-migrate-granular-access-cluster-configurations.md