Update README.md

8.0/6.0 or later.

- [CMake](https://cmake.org) 3.19 or later.

- pkg-config 0.29.1 (earlier versions will probably work but haven't been tested).

- [yaml-cpp](https://github.com/jbeder/yaml-cpp) version 0.6.2 and later.

- [Margo](https://github.com/mochi-hpc/mochi-margo) version 0.9.8 and later, and its dependencies:

  - [Argobots](https://github.com/pmodels/argobots) version 1.1 or later.

  - [Mercury](https://github.com/mercury-hpc/mercury) version 2.0.1 or later.

- [spdlog](https://github.com/gabime/spdlog) version 1.9.2 or later.

- [Catch2](https://github.com/catchorg/Catch2) version 3.0.1 or later.

- [tl/expected](https://github.com/TartanLlama/expected).

- [file_options](https://storage.bsc.es/gitlab/utils/file_options).

- [gen_opts](https://storage.bsc.es/gitlab/utils/genopts).

- [Rapid YAML](https://github.com/biojppm/rapidyaml) version 0.5.0 and later.

> **ℹ️** **Important**  

Margo and Argobots use `pkg-config` to ensure they compile and link correctly