Merge pull request #2677 from tpdownes/update_a3mega_docs

Add link to newly published A3 Mega documentation

Author: nick-stroud

examples/machine-learning/a3-megagpu-8g/README.md

@@ -1,7 +1,6 @@
 # A3 Mega / Slurm Blueprint for Google Cloud
 
-Complete instructions for deploying an a3-megagpu-8g cluster running Slurm on
-Google Cloud will be published on cloud.google.com. In the interim, please
-contact your [Technical Account Manager][tam] for guidance.
+To deploy an a3-megagpu-8g cluster running Slurm on Google Cloud, please follow
+these [instructions].
 
-[tam]: https://cloud.google.com/tam
+[instructions]: https://cloud.google.com/hpc-toolkit/docs/deploy/deploy-a3-mega-cluster