fix: update getting started script and docs #2744

Job	Run time
Run Cargo Udeps	1m 58s
Decide if Helm charts are pushed to the helm repository based on action trigger	3s
Run Rustfmt	14s
Run Cargo Deny (advisories)	46s
Run Cargo Deny (bans licenses sources)	46s
Run Cargo Tests	38s
Check if committed README is the one we would render from the available parts	34s
Run RustDoc	1m 27s
Check if committed Helm charts are up to date	47s
Run Clippy	38s
All tests passed	2s
Package Charts, Build Docker Image and publish them - ubuntu-latest	14m 29s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	9m 47s
Build and publish manifest list	41s
Run the OpenShift Preflight check on the published images	23s
	33m 13s

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