Merge pull request #451 from percona/9639

PS-9639 [DOCS] - remove get-help label in Mkdocs 8.0

Author: patrickbirch

mkdocs-base.yml

@@ -145,7 +145,7 @@ extra:
 nav:
   - Home: index.md
   - psmysql-pro.md
-  - Get more help: get-help.md
+  - get-help.md
   - Release notes:
     - Release notes index: release-notes/release-notes_index.md
     - release-notes/8.0.40-31.md