Unable to install Transformers Master version
@patil-suraj @joeddav 
Is there some other way to install master version of transformers?
I tried using the URL to install the master version but it installed v3.0.2

_Originally posted by @AnkitVarshney02 in https://github.com/huggingface/transformers/issues/6752#issuecomment-681716615_
Answered in #6752