Documentation/lessons/lesson2.md: clarify running make gitconfig

It's easy to misinterpret or miss altogether the instruction to
run 'make gitconfig', which will cause strange problems a few
commands later.  Revise the documentation to make it clearer.
Also adds a blurb further down with a link to find Gerrit
workflow docs.

detached from FETCH_HEAD
Signed-off-by: Michael Bacarella <michael.bacarella@gmail.com>
Change-Id: I49734c724c4d6da716a358cd849938ef14dab3b1
Reviewed-on: https://review.coreboot.org/c/30060
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>

0 files changed, 0 insertions, 0 deletions