Update access instructions

We no longer need to request a petition through BSC, as we will be in
charge of the login. Remove link to the old repository as well and
prefer only email.

web/content/access/index.md

@@ -8,7 +8,7 @@ description: "Request access to the machines"
 To request access to the machines we will need some information:
 
 1. Which machines you want access to ([hut](/hut), [fox](/fox), owl1, owl2, eudy, koro...)
-1. Your user name (make sure it matches the one from BSC)
+1. Your user name (make sure it matches the one you use for the BSC intranet)
 1. Your real name and surname (for identification purposes)
 1. The salted hash of your login password, generated with `mkpasswd -m sha-512`
 1. An SSH public key of type Ed25519 (can be generated with `ssh-keygen -t ed25519`)