refs and cleanup

Author: SimonCropp

docs/zzz.include.md docs/sponsors.include.mddocs/zzz.include.md renamed to docs/sponsors.include.md

@@ -2,4 +2,8 @@
 
 [Entity Framework Extensions](https://entityframework-extensions.net/?utm_source=simoncropp&utm_medium=https://github.com/VerifyTests/Verify.TestableIO.System.IO.Abstractions) is a major sponsor and is proud to contribute to the development this project.
 
-[![Entity Framework Extensions](https://raw.githubusercontent.com/VerifyTests/Verify.TestableIO.System.IO.Abstractions/refs/heads/main/docs/zzz.png)](https://entityframework-extensions.net/?utm_source=simoncropp&utm_medium=Verify.TestableIO.System.IO.Abstractions)
+[![Entity Framework Extensions](https://raw.githubusercontent.com/VerifyTests/Verify.TestableIO.System.IO.Abstractions/refs/heads/main/docs/zzz.png)](https://entityframework-extensions.net/?utm_source=simoncropp&utm_medium=Verify.TestableIO.System.IO.Abstractions)
+
+### Developed using JetBrains IDEs
+
+[![JetBrains logo.](https://resources.jetbrains.com/storage/products/company/brand/logos/jetbrains.svg)](https://jb.gg/OpenSourceSupport)

readme.md

@@ -12,7 +12,7 @@ Extends [Verify](https://github.com/VerifyTests/Verify) to allow verification of
 ## Sponsors
 
 
-### Entity Framework Extensions<!-- include: zzz. path: /docs/zzz.include.md -->
+### Entity Framework Extensions<!-- include: sponsors. path: /docs/sponsors.include.md -->
 
 [Entity Framework Extensions](https://entityframework-extensions.net/?utm_source=simoncropp&utm_medium=https://github.com/VerifyTests/Verify.TestableIO.System.IO.Abstractions) is a major sponsor and is proud to contribute to the development this project.
 

src/Directory.Packages.props

@@ -4,9 +4,9 @@
     <CentralPackageTransitivePinningEnabled>true</CentralPackageTransitivePinningEnabled>
   </PropertyGroup>
   <ItemGroup>
-    <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.0.0" />
+    <PackageVersion Include="MarkdownSnippets.MsBuild" Version="28.0.1" />
     <PackageVersion Include="Microsoft.NET.Test.Sdk" Version="18.3.0" />
-    <PackageVersion Include="Polyfill" Version="9.13.0" />
+    <PackageVersion Include="Polyfill" Version="9.18.0" />
     <PackageVersion Include="ProjectDefaults" Version="1.0.172" />
     <PackageVersion Include="TestableIO.System.IO.Abstractions" Version="22.1.0" />
     <PackageVersion Include="TestableIO.System.IO.Abstractions.Wrappers" Version="22.1.0" />

src/nuget.md

@@ -8,7 +8,7 @@ Extends [Verify](https://github.com/VerifyTests/Verify) to allow verification of
 ## Sponsors
 
 
-### Entity Framework Extensions<!-- include: zzz. path: /docs/zzz.include.md -->
+### Entity Framework Extensions<!-- include: sponsors. path: /docs/sponsors.include.md -->
 
 [Entity Framework Extensions](https://entityframework-extensions.net/?utm_source=simoncropp&utm_medium=https://github.com/VerifyTests/Verify.TestableIO.System.IO.Abstractions) is a major sponsor and is proud to contribute to the development this project.