[DOC]: Bad links on https://nvidia.github.io/cccl/thrust/

### Is this a duplicate?

- [x] I confirmed there appear to be no [duplicate issues](https://github.com/NVIDIA/cccl/issues) for this bug and that I agree to the [Code of Conduct](CODE_OF_CONDUCT.md)

### Describe the incorrect/future/missing documentation

Links on this page seem to be broken. [GitHub] and [CCCL Getting Started section] show up as written, not as links.

### If this is a correction, please provide a link to the incorrect documentation. If this is a new documentation request, please link to where you have looked.

https://nvidia.github.io/cccl/thrust/