Note: migrated from original JIRA: https://issues.apache.org/jira/browse/ARROW-4683

We are moving fast with the Rust implementation and the docs can be ignored at times.  We are starting to get to the point where the project is useful and we should ensure that the docs are up to scratch to avoid hurting adoption.