update template path

Author: Junyi-99

src/app.ts

@@ -17,7 +17,7 @@ const port = process.env['PORT'] || 8000;
 
 app.use(express.json());
 
-nunjucks.configure('src/templates', {
+nunjucks.configure('./templates', {
   autoescape: true,
   express: app,
 });