Use singular for event types

README.md

@@ -66,7 +66,7 @@ as state key. By default, these states can be set by each user for themselves.
 
 Any Matrix room can be augmented with an arbitrary number of maps, by adding the
 [JSON formatted map](https://doc.mapeditor.org/en/stable/reference/json-map-format/)
-to the room state under the `team.auglement.augmentile.maps` event. The state key
+to the room state under the `team.auglement.augmentile.map` event. The state key
 is the map name, which can be used as `exitUrl` in other maps.
 
 To add a Tiled map to a Matrix room, export your map in JSON format (we will assume
@@ -78,7 +78,7 @@ curl \
   -H "Authorization: Bearer AccessToken" \
   -H "Content-Type: application/json" \
   -d @mymap.json \
-  https://matrix.org/_matrix/client/r0/rooms/%21roomid%3Amatrix.org/state/team.auglement.augmentile.maps/mymap
+  https://matrix.org/_matrix/client/r0/rooms/%21roomid%3Amatrix.org/state/team.auglement.augmentile.map/mymap
 ```
 
 ### Adding the game as room widget