chore: fixed typos

[CodeWithEmad]

As decided in #474, I'll break the big clean-up PR into smaller PRs for faster review/merge.

this will introduce:

• fixing typos.
• fixing code block usage.

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[feanil]

@CodeWithEmad this has some conflicts with your other PR that I merged, can you fix it up?

[CodeWithEmad]

Sure @feanil.

[CodeWithEmad]

Thank you @pdpinch for the review. I've added all the requested changes.

The existing docs often include a shell prompt ($) in code snippets, and this PR removes them.

The code blocks have a copy button in the website. Having the $ in the beginning causes unnecessary deletion for users who want to copy and use that command.

[feanil]

You can rebase merge, I only squash when it's clear there are a lot of intermediate temp commits. We turned off conventional commits on this repo to make it easier for less technical folks to make suggestions without needing to understand conventional commits.

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[pdpinch]

Thank you @CodeWithEmad!