*-man-pages repos moving to sr.ht

[Alexis]

Hi all,

In the coming weeks, i'm hoping to move the *-man-pages repos from 
GitHub to sr.ht. My plan is to do so gradually (e.g. one a week), 
in the following order:

* s6-portable-utils-man-pages
* s6-networking-man-pages
* execline-man-pages
* s6-man-pages

i probably won't start this process for at least a week, to give 
relevant parties the chance to read this email.


Alexis.