Fix the Linux Starter Guide docs
Fix the Linux Starter Guide docs

The auto-conversion from googlecode wiki format apparently wasn't perfect.
This also fixes up some of the links to point to the new Breakpad repo.

R=vapier@chromium.org
BUG=

Review URL: https://codereview.chromium.org/1823583002 .

bittorrent/breakpad,bittorrent/breakpad,bittorrent/breakpad,bittorrent/breakpad,bittorrent/breakpad,bittorrent/breakpad,bittorrent/breakpad