Now that Clio 2.1.0 has been released, we want to make sure this info is updated in the api methods.
Ports changes made in this draft [PR](https://github.com/XRPLF/xrpl-dev-portal/pull/2337).
I will close that draft once this is merged.
For better URLs, the content folder has been renamed 'docs' and all
other files have been moved up a level. Also, non-docs images have been
moved to the static folder at the top level where they belong.
Many relative paths had to be fixed to make this work.