[DVRL-19] - add 'create-audius-app' docs

[samgutentag]

Description

Documentation for SDK examples using create-audius-app

How Has This Been Tested?

Please describe the tests that you ran to verify your changes. Provide repro instructions & any configuration.

[changeset-bot[bot]]

⚠️ No Changeset found

Latest commit: f31ebb4abc467daf870f7b3d551452c47e438e16

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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[gitguardian[bot]]

⚠️ GitGuardian has uncovered 1 secret following the scan of your pull request.

Please consider investigating the findings and remediating the incidents. Failure to do so may lead to compromising the associated services or software components.

🔎 Detected hardcoded secret in your pull request

GitGuardian id	GitGuardian status	Secret	Commit	Filename
9349019	Triggered	Generic High Entropy Secret	e09418110a0a841d72a8740c96ec925c85a5dec0	dev-tools/config.json	View secret

🛠 Guidelines to remediate hardcoded secrets

1. Understand the implications of revoking this secret by investigating where it is used in your code.
2. Replace and store your secret safely. Learn here the best practices.
3. Revoke and rotate this secret.
4. If possible, rewrite git history. Rewriting git history is not a trivial act. You might completely break other contributing developers' workflow and you risk accidentally deleting legitimate data.

To avoid such incidents in the future consider

• following these best practices for managing and storing secrets including API keys and other credentials
• install secret detection on pre-commit to catch secret before it leaves your machine and ease remediation.

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