Pushing code to github from Sublime Text3

Namaste Everyone,

I need some pointers to push my code to github from Sublime Text3. I am
able to initialize, add, commit and add remote origin but unable to push.
When I ran the push command if looks for authentic username and password
for github. I don't know where to provide the login credentials (may be in
git config file) but how do I do it from Sublime Text3?

If there is anyone who has prior experience on it then please guide me or
redirect me to some relevant links.

Look forward to hear from you soon.

Thanks for your valuable time.

-- 

*Regards,Sahil ModGill*
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