Merge pull request #113485 from mrbullwinkle/mrb_04_30_2020_SPA

update title filter displaynames

Author: GitHubber17

articles/azure-monitor/toc.yml

@@ -214,6 +214,7 @@
       - name: Web pages
         items:
         - name: Client-side JavaScript
+          displayname: SPA, Single Page Applications, React, JS, Angular
           href: app/javascript.md
         - name: Source map for JavaScript
           href: app/source-map-support.md