docs: fix link in README (#2728)

## Summary

## How was it tested?

## Community Contribution License

All community contributions in this pull request are licensed to the
project
maintainers under the terms of the
[Apache 2 License](https://www.apache.org/licenses/LICENSE-2.0).

By creating this pull request, I represent that I have the right to
license the
contributions to the project maintainers under the Apache 2 License as
stated in
the
[Community Contribution
License](https://github.com/jetify-com/opensource/blob/main/CONTRIBUTING.md#community-contribution-license).

Signed-off-by: Salim B <[email protected]>

Author: salim-b

README.md

@@ -47,7 +47,7 @@ curl -fsSL https://get.jetify.com/devbox | bash
 ```
 
 Read more on the
-[Devbox docs](https://www.jetify.com/devbox/docs/installing_devbox/).
+[Devbox docs](https://www.jetify.com/devbox/docs/installing-devbox/).
 
 ## Benefits