fix(charts): Corrected invalid YAML in description tags

[maxs-rose]

Pull Request template

Please, go through these steps before you submit a PR.

Why is this PR required? What issue does it fix?:

Some description tags had an invalid structure for multi line strings. For Example:

description: 'Some
description`

Multi line single quoted flows require at least 1 level of indentation or else a parser should treat the first word on the new line as an implicit key.

Valid example:

description: 'Some
  description'

What this PR does?:

Correct invalid yaml for multi line descriptions

Does this PR require any upgrade changes?: No

Checklist:

• [x] Fixes #269
• [x] PR Title follows the convention of <type>(<scope>): <subject>
• [x] Has the change log section been updated?
• [ ] Commit has unit tests
• [ ] Commit has integration tests
• [ ] (Optional) Are upgrade changes included in this PR? If not, mention the issue/PR to track:
• [ ] (Optional) If documentation changes are required, which issue on https://github.com/openebs/openebs-docs is used to track them:

[abhilashshetty04]

@maxs-rose , Thanks for your contribution. Since you have done chart version bump we will cherry pick this into new PR.

[Abhinandan-Purkait]

Included in #277

[niladrih]

Those CRDs are sourced from kubernetes-sigs/external-snapshotter. Those CRDs are generated using kube-builder's controller-gen tool. If you'd like to address this issue at its core, that's where you'd want look. This doesn't affect the lvm-localpv installers (yamls) in any way, these yamls are meant to satify kubernetes' API validation, external linter criteria are a non-goal.

cc: @avishnu