Fix typo: atrribute -> attribute

[changeworld]

No description provided.

[learn-build-service-prod]

Learn Build status updates of commit 37ed4a1:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/snippets/csharp/VS_Snippets_ProTools/data_wpfwcf/cs/web.debug.config	✅Succeeded
docs/snippets/csharp/VS_Snippets_ProTools/data_wpfwcf/cs/web.release.config	✅Succeeded
docs/snippets/visualbasic/VS_Snippets_ProTools/data_wpfwcf/vb/web.debug.config	✅Succeeded
docs/snippets/visualbasic/VS_Snippets_ProTools/data_wpfwcf/vb/web.release.config	✅Succeeded

For more details, please refer to the build report.

[prmerger-automator]

PRMerger Results

Issue	Description
Unapproved file extension(s)	This PR contains file types that are not supported in the repo. The only supported file types are jpg, gif, png, json, svg and md.

[v-dirichards]

Looks good, thanks @changeworld!