[New article]: Resource commands for 9.0

[JamesNK]

Proposed topic or title

Create custom resource commands

Location in table of contents.

Extensibility

Reason for the article

Aspire 9 adds resource commands: dotnet/aspire#5538

We should show people how to add resource commands and how to then use them in an app host

Article abstract

Tells us:

• What resource commands are
• How to implement a new resource command
• How to use the new resource command in an Aspire app

Relevant searches

No response

[IEvangelist]

Closed by #1867