Update README docs for graduation #1797
Description
Reporter: Ryan Blue / @rdblue
Assignee: Alex Levenson / @isnotinvain
Related issues:
- Release Parquet 1.8.0 (blocks)
- Updates URLs to link against the apache user instead of Parquet on github (incorporates)
PRs and other links:
Note: This issue was originally created as PARQUET-264. Please see the migration documentation for further details.