[hotfix][docs] Fix Helm broken table documentation page

[Dennis-Mircea]

What is the purpose of the change

Fixture of a documentation broken table:

Previously:

After this fix:

Brief change log

Only the docs/content/docs/operations/helm.md file was updated for the main documentation. Chinese one is not impacted.

Verifying this change

(Please pick either of the following options)

This change is a small hotfix and can be checked within the documentation page.

Does this pull request potentially affect one of the following parts:

• Dependencies (does it add or upgrade a dependency): no
• The public API, i.e., is any changes to the CustomResourceDescriptors: no
• Core observer or reconciler logic that is regularly executed: no

Documentation

• Does this pull request introduce a new feature? no
• If yes, how is the feature documented? not applicable

[csviri]

LGTM