So I go there instead, which has nothing about Git.
The "Getting Started" page has a link to "Getting Started with Modular
Boost Library Development using Git" right at the very bottom, and the
"Getting Started - Using Git" link in the sidebar takes me to a
different page with very generic Git info (not specific to Boost), and
again, near the bottom, is the "Getting Started with Modular Boost
Library Development using Git" link. So I click that and ...
Also, several links from the
https://svn.boost.org/trac10/wiki/ModularBoost page should be fixed to
go to the right place in the new github wiki, instead of to a page
that says "this has moved to X" and then when you got to X it says
"the wiki is at Y", and just links to the front page of Y (not the
page you were actually trying to find).