Change join to start

.gitignore

@@ -47,4 +47,5 @@ Temporary Items
 
 ### Production
 DockerfileProd
+key.json
 prod/

document/implementation/README.md

@@ -0,0 +1,22 @@
+# Web-based Cloud Gaming Service Implementation Document
+
+## Code structure
+.
+├── cmd
+│   ├── main.go
+│   └── main_test.go
+├── emulator: emulator internal
+│   ├── director.go: coordinator of views
+│   └── gameview.go: in game logic
+├── overlord: coordinator of workers
+├── games: roms list, no code logic
+├── static: static file for front end
+│   ├── js
+│   │   └── ws.js: client logic
+│   ├── gameboy.html: frontend with gameboy ui
+│   └── index_ws.html: raw frontend without ui
+├── cws
+│   └── cws.go: socket multiplexer library, used for signalling
+├── webrtc
+└── worker: integration between emulator + webrtc (communication) 
+

static/gameboy2.html

@@ -37,7 +37,7 @@
 
         <div id="btn-load" unselectable="on" class="btn-big unselectable" value="load">load</div>
         <div id="btn-save" unselectable="on" class="btn-big unselectable" value="save">save</div>
-        <div id="btn-join" unselectable="on" class="btn-big unselectable" value="join">join</div>
+        <div id="btn-join" unselectable="on" class="btn-big unselectable" value="join">start</div>
         <div id="btn-quit" unselectable="on" class="btn-big unselectable" value="quit">quit</div>
 
 
@@ -79,4 +79,4 @@
     
 </body>
 
-</html>
+</html>