Doc explaining the codebase structure

[arelra]

What does this change?

A document that explains the current codebase structure

Slight assumption that #1734 will be merged for the libs directory but we can update if not.

Why?

Helps new joiners to the team.

@dskamiotis @deedeeh @cemms1

[changeset-bot]

⚠️ No Changeset found

Latest commit: 2f188a2

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[github-actions]

Deploy build 2921 of dotcom::commercial-bundle to CODE

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• What's on CODE right now?

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From guardian/actions-riff-raff.

[github-actions]

Ad load time test results

For consented, top-above-nav took on average 4268ms to load.
For consentless, top-above-nav took on average 3096ms to load.

Test conditions:

• 5mbps download speed
• 1.5mbps upload speed
• 150ms latency