Rewrite instructions for installing and using Dagster Helm
Added a short introduction for our Dagster Helm chart, and some short, easy steps
for our users to follow to setup their environment before running the deployment commands.
Currently investing in rewriting the deployment documentation on our docs site. There, we
can explain the specific parts of our system, once that is completed, we can link those
documents in the readme.
Test Plan: N/A
Reviewers: nate, catherinewu, bob, alangenfeld
Reviewed By: alangenfeld
Differential Revision: https://dagster.phacility.com/D5171