Fix typos

proposals/2689-fix-e2ee-for-guests.md

@@ -2,8 +2,8 @@
 
 MSC751 suggested to allow guests to use several endpoints in order to allow guests to use E2EE.
 I found that guests are able to join encrypted rooms and read messages from other members. But when the
-guest wants to send an event into the room the client receives an "guest access not allowed" error
-for the `/rooms/room_id/members` endpoint. I assume the client tries to read the list of room members
+guest wants to send an event into the room the client receives a "guest access not allowed" error
+for the `/rooms/{room_id}/members` endpoint. I assume the client tries to read the list of room members
 to prepare the encryption of the event for the present members. Tests with a patched Synapse showed that
 allowing guests to use this endpoint results in a normal behaviour and enables guests to communicate in
 encrypted rooms.
@@ -11,7 +11,7 @@ encrypted rooms.
 
 ## Proposal
 
-Allow guests to use the `GET /_matrix/client/r0/rooms/<room_id>/members` endpoint to enable them to
+Allow guests to use the `GET /_matrix/client/r0/rooms/{room_id}/members` endpoint to enable them to
 operate properly in encrypted rooms.