fix example imports

readme.md

@@ -7,8 +7,8 @@ A simple router to build APIs with Deno, built on top of the Deno's standard HTT
 Use `server()` to initialize and register routes and the 'response' module to generate the response.
 
 ```javascript
-import { server } from "https://github.com/gustavofabiane/denorouter/server.ts"
-import { json } from "https://github.com/gustavofabiane/denorouter/response.ts"
+import { server } from "https://raw.githubusercontent.com/gustavofabiane/denorouter/master/server.ts"
+import { json } from "https://raw.githubusercontent.com/gustavofabiane/denorouter/master/response.ts"
 
 const app = server()
 app.get("/hello/:name", (req, { name }) => json({