fatal: unable to access 'https://github.com/github-eliviate/papers.git/': Failed to connect to github.com port 443 after 21107 ms: Timed out

fatal: unable to access 'https://github.com/github-eliviate/papers.git/': Failed to connect to github.com port 443 after 21107 ms: Timed out

解决：

   git config --global --unset http.proxy

    git config --global --unset https.proxy