I would like to improve other document pages if this is approved.

Hello @a234asthana, thank you for proposing improvements to the docs.

However based on the current state of the head-branch, the changes appear to be inconsistent and therefore incomplete:

Issues

• The bullet-points appear to be children of the first paragraph (concerned with installing Ruby) of the section. But the contents of those bullet-points are in reality, not related to the first paragraph at all.
• The bulleted contents should appear to be contiguous. i.e. The text and following code-block should be indented by the same amount in order to maintain visual flow. (Please see the Quickstart instructions to get an idea of what I mean.)
• A cursory Google search shows that Step by step is valid usage and therefore hyphenating to Step-by-step is unnecessary.

P.S. You need not rebase your branch after you commit your changes.

Hi @ashmaroli, I got your point. Thanks for the reference link.
So, in this case, we can skip the changes.