Clarify where to specify appservice protocols

README.md

@@ -50,9 +50,11 @@ Please also be aware that this is an unoffical project worked on in my (Half-Sho
 #### 3PID Protocol Support
 
 This bridge support searching for rooms within networks via the 3pid system
-used in clients like [Riot](https://riot.im). However, it requires a small manual change
-to your registration file. Add ``protocols: ["discord"]`` to the end and restart both your bridge
-and synapse. Any new servers/guilds you bridge should show up in the network list on Riot and other clients.
+used in clients like [Riot](https://riot.im). However, it requires a small
+manual change to your registration file. Change the end of
+`discord-registration.yaml` to `protocols: ["discord"]`` and restart both your
+bridge and synapse. Any new servers/guilds you bridge should show up in the
+network list on Riot and other clients.
 
 ### Setting up Discord