Update layoutlib create README [DO NOT MERGE]
Update layoutlib create README [DO NOT MERGE]

Update the doc to reflect the current state of the tool and use a
consistent 100 char column limit.

Change-Id: I64fb58cc46abbc2f3759cb1f99d42b5090c1409f
(cherry picked from commit 88585f404cb493129847e4487b628062674a4ede)

xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base,xorware/android_frameworks_base