Update README.md

Grammar and nitpicks

README.md

 
 ![Join Menu](~Documentation/Images/tutorial_1_lobbyList.png?raw=true "Join Menu")
 
-2 The Create Menu Lets you make a new Lobby.
+2. The Create Menu Lets you make a new Lobby.
-3 This is the Lobby, It has a Room code for you to share with your friends to allow them to join.
+3. This is the Lobby, It has a Room code for you to share with your friends to allow them to join.
-4 Open the second game instance in Editor or in Build, you should now see your Lobby in the list.
+4. Open the second game instance in Editor or in Build, you should now see your Lobby in the list.
-5 The Lobby holds up to 4 players and will pass the Relay code once all the players are ready.
+5. The Lobby holds up to 4 players and will pass the Relay code once all the players are ready.
-6 The countdown will start after the rooms data synch has completed. (It is a little slow due to our refresh rate being low at the moment)
+6. The countdown will start after the rooms data synch has completed. (It is a little slow due to our refresh rate being low at the moment)
-7 The relay service IP gets passed to all users in the lobby, and this is where you would connect to a server, if you had one.
+7. The relay service IP gets passed to all users in the lobby, and this is where you would connect to a server, if you had one.
 
 ![InGame!](~Documentation/Images/tutorial_7_ingame.png?raw=true)