Update doc url

index.js

@@ -3,7 +3,7 @@ const server = require("./api/server");
 server.get("/", (req, res) => {
 	res.json({
 		message: `API server for Dijkstra. :)`,
-		documentation: `Check out: https://github.com/ruihildt/dijkstra/tree/completed-backend`
+		documentation: `Check out: https://github.com/ruihildt/dijkstra`
 	});
 });