Service principle resource link doesn't work

in the vaults page under-read your secrets for a sample app the service principle resource link under resources redirects to

https://developer.hashicorp.com/hcp/docs/hcp/iam/service-principals

which says "We couldn't find the page you're looking for." 

I'm not sure if this is the right place to raise this, but yea seems like the links got changed  and they never got updated