Update 'content/instant-messaging/server-support-for-audio-video-calls.md'

content/instant-messaging/server-support-for-audio-video-calls.md

@@ -82,13 +82,13 @@ The file looks like this:
     no-cli # disable command-line access
     
 
-Now time for some config. Edit file in a few places:
+Now time for some config. You need to edit `/etc/tunserver.conf` in a few places.
  
-Add your external IP-address to `listening-ip`. If you don't know it, you can find out using the following command:
+First, add your external IP-address to `listening-ip`. If you don't know it, you can find out using the following command:
 
 `curl https://ifconfig.co`
 
-Set `static-auth-secret` to a decently long passphrase. You can also generate one with: 
+Then, set `static-auth-secret` to a decently long passphrase. You can also generate one with: 
 
 `openssl rand -base64 30`.