Getting a proposal through to an amendment

1. Start a New discussion here: https://github.com/XRPLF/XRPL-Standards/discussions
2. Open a New issue here: https://github.com/XRPLF/rippled/issues
3. Write a spec document in Markdown and open a PR for it here: https://github.com/XRPLF/XRPL-Standards/pulls?q=is%3Apr
4. Code an implementation and open a PR for it here: https://github.com/XRPLF/rippled/pulls

Examples:

• https://github.com/XRPLF/rippled/pull/4336
• https://github.com/XRPLF/rippled/pull/4105
• https://github.com/XRPLF/rippled/pull/4097