tree df164f73f930b3c0cf25c024324ca9c025c205e3
parent ba287a0503bbe48e303138c51745e2d31db7f87c
author Scott Main <smain@google.com> 1553121213 -0700
committer Scott Main <smain@google.com> 1553121213 -0700

add git login step to Get Started guide

without this, repo sync repeatedly prompts for login, which
is basically impossible because they stack on each other in the terminal

Change-Id: I5c095b80b4723a3243defb81bd7306d26ce1c439