Remove hardcoded user from i3statusbar

i3status/config

@@ -20,9 +20,10 @@ read_file battery {
 }
 
 
-# Hostname shown as 🖥 debi3.lan
+# Hostname should be put in ~.hostname_lan in FQDN form.
+# (I just run 'echo $(hostname).lan > ~/.hostname_lan' to make the file)
 read_file hostname {
-    path = "/home/mrkmntal/.hostname_lan"
+    path = "~/.hostname_lan"
     format = "🖥 %content"
 }