[Docs RFC] Update Tobs docs by replacing CLI with Helm (as part of CLI deprecation)

[Rajakavitha1]

Describe change in content, appearance, or functionality

timescale/tobs#476

Advocate helm-based installation in all our docs.

Below are the docs pages that need refactoring:
Tobs installation guide
Tobs CLI configuration options
Tobs docs in Github

Subject matter expert (SME)

@onprem

Deadline

[When does this need to be addressed]

Any further info

[Anything else you want to add, or further links]

[Loquacity]

@ramonguiu Is there a deadline for this content? Just trying to plan work over the next couple of weeks, we have a fair bit coming down the pipe and an offsite to deal with.

[VineethReddy02]

@Rajakavitha1 The assignee should be @onprem, for him to track down this work.

[Rajakavitha1]

@Rajakavitha1 The assignee should be @onprem, for him to track down this work.

Just assigned it to @onprem. However, for tracking, I have also assigned him as a reviewer for the related PR.

[Rajakavitha1]

Closing this issue because the Tobs CLI deprecation and Tobs Helm installation are now live on the website.