Link from README.md to VERSIONS.md

Signed-off-by: Joshua Minor <joshm@pixar.com>

Author: jminor

README.md

@@ -66,6 +66,8 @@ The current release supports:
 - VFX platform 2025, 2024, 2023, 2022
 - Python 3.9 - 3.12
 
+See also [OpenTimelineIO VFX Reference Platform Support Matrix](VERSIONS.md) for details of which versions of OTIO support which VFX Reference Platform years.
+
 For more information on our vfxplatform support policy: [Contribution Guidelines Documentation Page](https://opentimelineio.readthedocs.io/en/latest/tutorials/contributing.html)
 For more information on the vfxplatform: [VFX Platform Homepage](https://vfxplatform.com)