Update awesomebot settings
Update awesomebot settings

- Ignore 5?? codes to make link checks not fail a PR if a remote server
  is in a tizzy
- Add delay between requests to keep GitHub from rate-limiting us

Signed-off-by: Joe Block <13bb081c6ac072ef78a3e348068e2204400d7335@unixorn.net>

unixorn/jpb.zshplugin,unixorn/jpb.zshplugin,unixorn/jpb.zshplugin,unixorn/jpb.zshplugin