Document the OpenSearch operator #39

Job	Run time
Run Cargo Udeps	2m 1s
Run Cargo Deny (advisories)	45s
Decide if Helm charts are pushed to the helm repository based on action trigger	2s
Run Clippy	33s
Run Cargo Deny (bans licenses sources)	49s
Run Rustfmt	15s
Run RustDoc	1m 17s
Check if committed Helm charts are up to date	43s
Run Cargo Tests	30s
Check if committed README is the one we would render from the available parts	25s
All tests passed	2s
Package Charts, Build Docker Image and publish them - ubicloud-standard-8-arm	9m 43s
Package Charts, Build Docker Image and publish them - ubuntu-latest	11m 43s
Build and publish manifest list	48s
Run the OpenShift Preflight check on the published images	17s
	29m 53s

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