Update README.md to add links to the roadmap (#17858)

* Update README.md to add links to the roadmap

Added links to both the website roadmap (easiest to understand quickly) and the github roadmap (tracks progress against roadmap items)

Signed-off-by: Joe Bryant <[email protected]>

* Update README.md

Implementing spham-amzn suggestion.

Co-authored-by: Steve Pham <[email protected]>
Signed-off-by: Joe Bryant <[email protected]>

---------

Signed-off-by: Joe Bryant <[email protected]>
Co-authored-by: Steve Pham <[email protected]>

README.md

@@ -5,6 +5,9 @@ O3DE (Open 3D Engine) is an open-source, real-time, multi-platform 3D engine tha
 ## Contribute
 For information about contributing to Open 3D Engine, visit [https://o3de.org/docs/contributing/](https://o3de.org/docs/contributing/).
 
+## Roadmap
+For information about upcoming work and features, please visit [https://o3de.org/roadmap](https://o3de.org/roadmap). Progress against the roadmap is tracked [here](https://github.com/orgs/o3de/projects/56/views/2).
+
 ## Download and Install
 
 This repository uses Git LFS for storing large binary files.