Update README.md

listen port added in #3

README.md

@@ -147,7 +147,7 @@ You need GOLANG to build and test locally and a OCI compatible container builder
 <!-- ROADMAP -->
 ## Roadmap
 
-- [ ] Configurable port to listen on
+- [x] Configurable port to listen on
 
 See the [open issues](https://github.com/keifgwinn/redirector/issues) for a full list of proposed features (and known issues).
 
@@ -212,4 +212,4 @@ Project Link: [https://github.com/keifgwinn/redirector](https://github.com/keifg
 [license-url]: https://github.com/keifgwinn/redirector/blob/master/LICENSE.txt
 [linkedin-shield]: https://img.shields.io/badge/-LinkedIn-black.svg?style=for-the-badge&logo=linkedin&colorB=555
 [linkedin-url]: https://linkedin.com/in/keifgwinn
-[product-screenshot]: images/screenshot.png
+[product-screenshot]: images/screenshot.png