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
fatal: unable to access 'https://github.com/github-eliviate/papers.git/': Failed to connect to github.com port 443 after 21107 ms: Timed out
过去已逝，未来太远，只争今朝