#3994 Updates to deployment guides Pull request opened by davidmirror-ops Tracking issue Closes #3973 Describe your changes • Add references to Flyte The Hard Way tutorial in multiple places • Partially updates the Multicluster setup guide. An additional PR will come after additional testing is done • Removes or rewrites sentences to better match current status Check all the applicable boxes ☑︎ I updated the documentation accordingly. ☑︎ All new and existing tests passed. ☑︎ All commits are signed-off. Screenshots Note to reviewers flyteorg/flyte GitHub Actions: build-and-push-sandbox-bundled-image GitHub Actions: sandbox-bundled-functional-tests GitHub Actions: trigger-sandbox-lite-build ✅ 9 other checks have passed 9/12 successful checks