https://github.com/biojppm/rapidyaml/blob/v0.16.0/README.md "project's README"
readthedocs page
To start exploring ryml's API:
1. locate the navigation side bar, to the left of this text
2. expand to Topics -> Quickstart-> Overview and click there to open (direct link: Overview)
3. scroll through the overview
4. from the start you will likely be interested in one or more of the following topics:
  - quickstart Parsing, follow-up with Parse utilities for the API docs
  - quickstart Tree, follow-up with Tree utilities for the API docs
  - quickstart Emitting, follow-up with Emit utilities for the API docs
  - quickstart Serialization, follow-up with Serialization/deserialization for the API docs
5. read the remaining topics as required by your work

Happy ryml'ing!