Review comments

specification/0-events.rst

@@ -23,9 +23,8 @@ restrictions on sizes per key:
  - ``state_key`` MUST NOT exceed 255 bytes.
  - ``type`` MUST NOT exceed 255 bytes.
  - ``event_id`` MUST NOT exceed 255 bytes.
- - ``user_id`` MUST NOT exceed 255 bytes.
 
-Some event types have additional sizes restrictions which are specified in
+Some event types have additional size restrictions which are specified in
 the description of the event. Additional keys have no limit other than that
 implied by the total 65 KB limit on events.
 

specification/0-intro.rst

@@ -296,7 +296,7 @@ be obtained by visiting the domain specified. They are case-insensitive. Note
 that the mapping from a room alias to a room ID is not fixed, and may change
 over time to point to a different room ID. For this reason, Clients SHOULD
 resolve the room alias to a room ID once and then use that ID on subsequent
-requests. Room aliases MUST NOT exceed 255 bytes.
+requests. Room aliases MUST NOT exceed 255 bytes (including the domain).
 
 When resolving a room alias the server will also respond with a list of servers
 that are in the room that can be used to join via.