Update git submodules

* Update helpcontent2 from branch 'master'
  - Minor color and padding tweaks; some styling for TOC
    
    Just to fix the most egregious issues in content paragraphs.
    Some day I will actually have the energy to systematize
    everything into a cohesive set of spacing and padding values.
    
    Change-Id: I6d5d36e96d9c9a133d61b233413ebd17d8189d33
    

helpcontent2 @ 00c5a418

-Subproject commit 328abcbac6eba3c0bcfcd9fc82c5afd79d6e8d05
+Subproject commit 00c5a418955574905aed5137c43ce2219b50e6f9