Update git submodules

* Update helpcontent2 from branch 'master'
  to 864b59b22bfd2b80c54d54e930248a6dec435106
  - correct access command to indents tab for Format > Sections
    
      ( swriter/00/00000404.xhp )
        correct access command to Indents tab for Format > Sections
    
      ( swriter/01/04020200.xhp )
        update to <h1>,<h2>,relatedtopics <section>
    
    Change-Id: I6581de47aceeb8f5545088f2e7b9ad927d14337b
    Reviewed-on: https://gerrit.libreoffice.org/c/help/+/105852
    Reviewed-by: Seth Chaiklin <sdc.blanco@youmail.dk>
    Tested-by: Jenkins
    
diff --git a/helpcontent2 b/helpcontent2
index 0845c7e..864b59b 160000
--- a/helpcontent2
+++ b/helpcontent2
@@ -1 +1 @@
Subproject commit 0845c7e9549151fd01452ff55fb3539281f7c9dd
Subproject commit 864b59b22bfd2b80c54d54e930248a6dec435106