fix review pros

add readme

Merge pull request !140 from luopengting/lineage_test

Merge pull request !135 from quyongxiu1/br_qyx_0520

Merge pull request !143 from 潘慧/master_ph

fix pylint

add comment for all func and parames has instruction

logging use logger

fix pylint

logger Upper case

copyright 2020

use realpath

one example in converter fdopen onefile

use google-pasta instead of astunparse and add in requirements_txt

use __base__.__name__ to judge if subclass of nn.Module

comment fix

fix review problem

fix pylint

Merge pull request !142 from 潘慧/master_ph2

Merge pull request !129 from liangyongxiong/multi-runs

Merge pull request !141 from 潘慧/master_ph2

Merge pull request !138 from 潘慧/master_ph2

Merge pull request !137 from WeiFeng/master_ph

Merge pull request !128 from ougongchang/fixbug_exception

Merge pull request !133 from luopengting/lineage_added_info

Merge pull request !134 from luopengting/lineage_parsing

Merge pull request !124 from liangyongxiong/start

Merge pull request !132 from 潘慧/master_ph2

Merge pull request !127 from wenkai/wk3_fix_detail_cache

Merge pull request !121 from ougongchang/abstract_parser

Merge pull request !120 from luopengting/lineage_cache_datamgr

Merge pull request !116 from wenkai/wk_0515

Merge pull request !115 from ougongchang/fixbug_rename_node

graph guide

Merge pull request !111 from ougongchang/fixbug_graph

Merge pull request !106 from wenkai/wk02_cache_3cp1

Merge pull request !108 from 潘慧/graph