Accelerator documentation for v0.14.0 release

[oZakari]

Overview/Summary

Accelerator documentation for v0.14.0 release

This PR fixes/adds/changes/removes

1. Adds accelerator documentation with fixes from issue ❓👂 Question/Feedback - Update Accelerator wiki page to include custom parameters #504
2. #AB26310

Breaking Changes

1. None as documentation for new feature

Testing Evidence

Not applicable

As part of this Pull Request I have

• Read the Contribution Guide and ensured this PR is compliant with the guide
• Ensured the resource API versions in .bicep file/s I am adding/editing are using the latest API version possible
• Checked for duplicate Pull Requests
• Associated it with relevant GitHub Issues
• (ALZ Bicep Core Team Only) Associated it with relevant ADO Items
• Ensured my code/branch is up-to-date with the latest changes in the main branch
• Performed testing and provided evidence.
• Updated one or more of the following tests (if required)
  • Unit
  • Linting
  • E2E (End-To-End)
  • ValidateAzCloud (Base validation in Azure Cloud)
  • ValidateMcCloud (Base validation in Azure China Cloud)
• Updated relevant and associated documentation (e.g. Contribution Guide, Module READMEs, Wiki Docs etc.)
• If relevant, created or updated Code Tours here

[oZakari]

Please don't merge until v0.14.0 is released as it as dependencies on the release version.