Cannot install or upgrade plugins/integrations

[lee-morgan]

If i try to upgrade a plugin or install a new one i get errors similar to:
2020-02-29 12:18:58 ERROR (MainThread) [hacs.repository.plugin.ofekashery.vertical-stack-in-card] Download was not complete [Cannot connect to host raw.githubusercontent.com:443 ssl:None [Connect call failed ('::', 443, 0, 0)]]

[hacs-bot]

Make sure you have read the issue guidelines and that you filled out the entire template.

[ludeeus]

[Cannot connect to host raw.githubusercontent.com:443 ssl:None [Connect call failed ('::', 443, 0, 0)]]

That is an issue with your network, not HACS.
Also... this is the documentation repo.