Update pf.conf

Fix comment, because current one won't work:

cat /etc/pf.conf
anchor f2b {
  sshd
}

# service pf reload
Reloading pf rules.
/etc/pf.conf:2: syntax error

New version:

cat /etc/pf.conf
anchor f2b {
  anchor sshd
}

# service pf reload
Reloading pf rules.

config/action.d/pf.conf

@@ -18,8 +18,8 @@
 # also, these rulesets are loaded into (nested) anchors
 # to enable them, add
 #     anchor f2b {
-#        name1
-#        name2
+#        anchor name1
+#        anchor name2
 #        ...
 #     }
 # to your main pf ruleset, where "namei" are the names of the jails