Fix typos.

Yunyang Liu committed Apr 4, 2017

wiki: wrap all to 80 columns

MingcongBai committed Jan 1, 2017

ABBS: more doc improvements - Notes on the "$ABBS" variable - Cross-ref on aosc-os-abbs chapter

MingcongBai committed Jul 23, 2016

wiki: all done

MingcongBai committed Feb 27, 2016