Small modification to the installation proc

[yhontyk]

Read our Contribution guide before submitting a PR.

What does this PR do?

Updates the installation procedure, breaks one proc into different modules.

What issues does this PR fix or reference?

Specify the version of the product this PR applies to.

PR Checklist

As the author of this Pull Request I made sure that:

• Changed article references are updated where they are used (or a redirect has been set up on the docs side):
  • Dashboard branding.constant.ts + product.json
  • Chectl constants.ts

[rkratky]

Also, I realized there shouldn't be periods at the end of list items that are not full sentences, such as:

. Enter the project details:
+
* *Name*:  `{prod-short}`.
* *Display Name*: `{prod}`.
* *Description*: `{prod}`.

There are more of these in the PR.