Update good-practices.md (dotnet#2618)

docs/articles/guides/good-practices.md

@@ -4,8 +4,8 @@
 
 Never use the Debug build for benchmarking. *Never*. The debug version of the target method can run 10–100 times slower. 
 The release mode means that you should have `<Optimize>true</Optimize>` in your csproj file 
-or use [/optimize](https://learn.microsoft.com/dotnet/csharp/language-reference/compiler-options/) for `csc`. Also your never 
-should use an attached debugger (e.g. Visual Studio or WinDbg) during the benchmarking. The best way is 
+or use [/optimize](https://learn.microsoft.com/dotnet/csharp/language-reference/compiler-options/) for `csc`. Also, never 
+use an attached debugger (e.g. Visual Studio or WinDbg) during the benchmarking. The best way is 
 build our benchmark in the Release mode and run it from the command line.
 
 ## Try different environments