Hello Mike,
Actually i tried in wrong way.
1. I logged in https://github.com/ created repository.
2. Copied that repository link,pasted it "Initialize Local Repository" & did further steps as mentioned.
3. when i clicked on "Fetch" button from Git Pane.There was no any option for remote repository.
So "Push" was not worked as there was no remote repository available.
This was main cause of problem & it was resolved by link shared by Michal Keidar Git Basics in SAP Web IDE
Above link having brief information.
Regards,
Pavan