added description for lifecycle parameter

[premkirank]

Description

Added a description for the lifecycle parameter in README

Issues Resolved

Fixes https://github.com/opensearch-project/helm-charts/issues/459

Check List

• [x] Commits are signed per the DCO using --signoff

For any changes to files within Helm chart directories:

• [x] Helm chart version bumped
• [x] Helm chart CHANGELOG.md updated to reflect change

By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license. For more information on following Developer Certificate of Origin and signing off your commits, please check here.

[prudhvigodithi]

@premkirank can you please take a look at this comment. Thanks

[premkirank]

@premkirank can you please take a look at this comment. Thanks

@prudhvigodithi I had rebased my PR and requested a review again. Is there anything else that I have missed?

[prudhvigodithi]

Thanks, the CI tests fail can you please take care of it @premkirank ?

[premkirank]

@prudhvigodithi I am not able to understand why the tests are failing. Please help here.

[premkirank]

@premkirank You have updated the appVersion to 2.12 and we don't have a version of OpenSearch yet. Can you revert this to 2.11. You only need to update chart version and not app version.

@TheAlgo @prudhvigodithi have reverted the app version

[TheAlgo]

@prudhvigodithi Please do have a look when free. Thanks

[prudhvigodithi]

Thanks @TheAlgo, @premkirank can you please backport this to 1.x branch as well? this is for the OpenSearch 1.x series. Thank you

[premkirank]

Thanks @TheAlgo, @premkirank can you please backport this to 1.x branch as well? this is for the OpenSearch 1.x series. Thank you

@prudhvigodithi Here is the backport PR - https://github.com/opensearch-project/helm-charts/pull/491