Fix links, remove GangGo (archived), update portal [htmlproofer]

4 jobs for master in 6 minutes and 15 seconds (queued for 11 seconds)
Status Job ID Name Coverage
  Build
passed #6610
hexo

00:04:29

 
  Test
passed #6612
cert-renewal

00:01:32

failed #6611
htmlproofer

00:01:46

 
  Deploy
skipped #6613
pages
 
Name Stage Failure
failed
htmlproofer Test
- public/en/post/misskey-sophisticated-new-project/index.html
* External link https://wakest.social/@liaizon failed: response code 0 means something's wrong.
It's possible libcurl couldn't connect to the server or perhaps the request timed out.
Sometimes, making too many requests at once also breaks things.
Either way, the return message (if any) from the server is: Couldn't resolve host name
- public/en/socialhome/index.html
* External link https://git.feneas.org/socialhome/socialhome failed: got a time out (response code 0)
htmlproofer 3.8.0 | Error: HTML-Proofer found 25 failures!
ERROR: Job failed: exit code 1