Prepare v0.13.9 changelog

README.md

@@ -30,7 +30,7 @@ It's no harder than writing unit tests!
 Under the hood, it performs a lot of [magic](#automation) that guarantees [reliable and precise](#reliability) results thanks to the [perfolizer](https://github.com/AndreyAkinshin/perfolizer) statistical engine.
 BenchmarkDotNet protects you from popular benchmarking mistakes and warns you if something is wrong with your benchmark design or obtained measurements.
 The results are presented in a [user-friendly](#friendliness) form that highlights all the important facts about your experiment.
-BenchmarkDotNet is already adopted by [17400+ GitHub projects](https://github.com/dotnet/BenchmarkDotNet/network/dependents) including
+BenchmarkDotNet is already adopted by [17700+ GitHub projects](https://github.com/dotnet/BenchmarkDotNet/network/dependents) including
  [.NET Runtime](https://github.com/dotnet/runtime),
  [.NET Compiler](https://github.com/dotnet/roslyn),
  [.NET Performance](https://github.com/dotnet/performance),

docs/_changelog/footer/v0.13.9.md

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+_Date: TBA_
+
+_Milestone: [v0.13.9](https://github.com/dotnet/BenchmarkDotNet/issues?q=milestone%3Av0.13.9)_
+([List of commits](https://github.com/dotnet/BenchmarkDotNet/compare/v0.13.8...v0.13.9))
+
+_NuGet Packages:_
+* https://www.nuget.org/packages/BenchmarkDotNet/0.13.9
+* https://www.nuget.org/packages/BenchmarkDotNet.Annotations/0.13.9
+* https://www.nuget.org/packages/BenchmarkDotNet.Diagnostics.dotTrace/0.13.9
+* https://www.nuget.org/packages/BenchmarkDotNet.Diagnostics.Windows/0.13.9
+* https://www.nuget.org/packages/BenchmarkDotNet.Templates/0.13.9

docs/_changelog/header/v0.13.9.md

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+## Highlights
+
+This release contains bug fixes.