added cancel command

src/discord.ts

@@ -11,7 +11,8 @@ const commands = [
                 type: 4, //INTEGER
                 name: 'teamsize',
                 description: 'size of each team',
-                required: true
+                required: true,
+                min_value: 1
             }
         ]
     },
@@ -28,8 +29,8 @@ const commands = [
         description: 'ready the queue and display team info'
     },
     {
-        name: 'queueinfo',
-        description: 'get info of the current queue'
+        name: 'cancel',
+        description: 'cancels the current queue (must have the Manage Messages permission)'
     },
     {
         name: 'elo',