[Bug]: tiny bug in docs

[sconnon-repay]

Describe the bug

The code sample is incorrect in 2 of the samples in docs
https://github.com/microsoft/typespec/blob/main/website/src/content/docs/docs/extending-typespec/create-decorators.md

Thanks for all of the work so far

Reproduction

Just look at image attached. Code in sample does not compile

Checklist

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• The provided reproduction is a minimal reproducible example of the bug.