4 Commits (81cff972080d24124c7c96411c5bab5b6ae37606)

Author	SHA1	Message	Date
Heng Li	9ec5f51afb	the first draft	2017-08-03 12:12:55 -04:00
Heng Li	6c9390b54a	backup	2017-08-02 19:52:31 -04:00
Heng Li	d933a263d7	backup	2017-08-01 13:29:02 -04:00
Heng Li	d6181de844	added tech notes	2017-08-01 10:38:33 -04:00