Update rules/Proj0500.md

Co-authored-by: Wesley Baartman <[email protected]>

Author: Corniel

rules/Proj0500.md

@@ -20,7 +20,7 @@ those packages are advised to explicitly define a license. You
 might need to contact your legal department to define a proper license.
 
 This rules can detect missing licenses in NuGet spec files, but can not be
-considered legal advise, nor is this documentation.
+considered legal advice, nor is this documentation.
 
 ## See
 * [NuGet.org frequently-asked questions](https://learn.microsoft.com/nuget/nuget-org/nuget-org-faq#license-terms)