Merge pull request #148 from excalidraw/add_root

src/index.ts

@@ -10,6 +10,10 @@ const socketDebug = debug("socket");
 const app = express();
 const port = process.env.PORT || 80; // default port to listen
 
+app.get("/", (req, res) => {
+  res.send("Excalidraw collaboration server is up :)");
+});
+
 const server = http.createServer(app);
 
 server.listen(port, () => {