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

readme.md

@@ -13,7 +13,7 @@ A collection of minimal binary files.<!-- singleLineInclude: intro. path: /docs/
 ## 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=EmptyFiles) is a major sponsor and is proud to contribute to the development this project.
 

src/nuget.md

@@ -8,7 +8,7 @@ A collection of minimal binary files.<!-- singleLineInclude: intro. path: /docs/
 ## 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=EmptyFiles) is a major sponsor and is proud to contribute to the development this project.