docs: Fix getting started guide to use Postgres and TLS #2186

Job	Run time
Check if committed README is the one we would render from the available parts	23s
Check if committed Helm charts are up to date	48s
Run Cargo Deny (advisories)	39s
Run Clippy	35s
Run Cargo Deny (bans licenses sources)	43s
Run RustDoc	1m 6s
Run Rustfmt	16s
Run Cargo Tests	31s
Run Cargo Udeps	1m 25s
Select target helm repository based on action trigger	1s
All tests passed	1s
Package Charts, Build Docker Image and publish them - ubuntu-latest	10m 29s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	9m 38s
Build and publish manifest list	51s
Run the OpenShift Preflight check on the published images	12s
	27m 38s

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