[FX-5703] Remove storybook-readme

[mkrl]

FX-5703

Description

Backports what { doc } from 'storybook-readme' used to do to our internal 'react-markdown' renderer.

Fixes https://github.com/toptal/picasso/security/dependabot/156

How to test

• Temploy
• Look at all the doc pages, they should be visually unchanged (with some exceptions)
• Some of the elements actually look nicer now as previously some styles were applied twice

Screenshots

Before.	After.

Development checks

• [n/a] Add changeset according to guidelines (if needed)
• Read CONTRIBUTING.md and Component API principles
• [n/a] Make sure that additions and changes on the design follow Toptal's BASE design, and it's been already discussed with designers at #-base-core
• Annotate all props in component with documentation
• Create examples for component
• Ensure that deployed demo has expected results and good examples
• [n/a] Ensure the changed/created components have not caused accessibility issues. How to use accessibility plugin in storybook.
• Self reviewed
• [n/a] Covered with tests (visual tests included)

All development checks should be done and set checked to pass the
GitHub Bot: TODOLess action

PR commands

List of available commands:

• @toptal-bot run package:alpha-release - Release alpha version
• @toptal-anvil ping reviewers - Ping FX team for review

PR Review Guidelines

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   1. Add nit: to your comment. (ex. nit: I'd rename this variable from makeCircle to getCircle)

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1. Something is broken after the changes.
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[changeset-bot]

⚠️ No Changeset found

Latest commit: b9efc1e

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

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[mkrl]

@toptal-anvil ping reviewers

[sashuk]

Code looks good, the change actually fixed some of the problems

Before

Now

[OleksandrNechai]

The code looks 👍 Thanks!