Update README.md

[master] add shape check for input, add set_sbn_eps_mode

[master] add warning messages when setting running_stat=False

Merge pull request #36 from wang93/master

Merge pull request #27 from DTennant/patch-1

compatible with pytorch 1.4.0

[master] fix device_ids in convert_model: see #35

[master] fix __all__ naming

[master] jactorch mak compatible, add patch_sync_batchnorm

Fix a error in docs of convert_model

Update contributor list

Merge pull request #25 from DTennant/master

batchnorm.py: add docs for convert_model

batchnorm.py: add function convert_model to convert a model to use SyncBatchNorm

Merge pull request #16 from vacancy/new-numeric-test