Update title for licenses REST file (#49582)

Author: skedwards88

content/rest/licenses/licenses.md

@@ -1,5 +1,7 @@
 ---
-title: Licenses
+title: REST API endpoints for licenses
+shortTitle: Licenses
+allowTitleToDifferFromFilename: true
 intro: >-
   Use the REST API to retrieve popular open source licenses and information
   about a particular project's license file.