Update git submodules

* Update helpcontent2 from branch 'master'
  - Fix typo
    
    Change-Id: Ideca97ded830b58d314c40dfa417ae5327325bca
    Reviewed-on: https://gerrit.libreoffice.org/60367
    Tested-by: Jenkins
Reviewed-by: Julien Nabet <serval2412@yahoo.fr>
    

helpcontent2 @ 69d729bd

-Subproject commit 0cfa25cb0494fee382aaa33f8dd0354f8a35b881
+Subproject commit 69d729bd8e60ebfa06cf33b52a22da3f35d039fe