[Docs] Misc `README` updates while reading through the docs

[Olshansk]

tl;dr Updating docs for clarity & formatting.

Description

• As a user, I update docs while reading through them to get a deeper understanding of the content
• Zero code changes
• Doc changes are primarily around formatting, organization and NITs

Tests

NA

Checklist

• [x] I have formatted and linted my code
• [x] All new and existing tests pass
• [x] My commits are signed (required for merge) -- you may need to rebase if you initially pushed unsigned commits

[cb-heimdall]

🟡 Heimdall Review Status

Requirement	Status	More Info
Reviews	🟡 0/1	Denominator calculation Show calculation 1 if user is bot 0 1 if user is external 0 2 if repo is sensitive 0 From .codeflow.yml 1 Additional review requirements Show calculation Max 0 0 From CODEOWNERS 0 Global minimum 0 Max 1 1 1 if commit is unverified 0 Sum 1

[vercel[bot]]

@Olshansk is attempting to deploy a commit to the Coinbase Team on Vercel.

A member of the Team first needs to authorize it.

[Olshansk]

@CarsonRoscoe Do you mind pinging the right person to take a look at this?