Fixed links to the attribute reference docs at mstest0001.md (#44211)

Author: abatishchev

docs/core/testing/mstest-analyzers/mstest0001.md

@@ -33,7 +33,7 @@ The assembly is not marked with `[assembly: Parallelize]` or `[assembly: DoNotPa
 
 ## Rule description
 
-By default, MSTest runs tests within the same assembly sequentially, which can lead to severe performance limitations. It is recommended to enable assembly attribute [`[assembly: Parallelize]`](/dotnet/api/microsoft.visualstudio.testtools.unittesting.parallelizeattribute) to run tests in parallel, or if the assembly is known to not be parallelizable, to use explicitly the assembly level attribute [`[assembly: DoNotParallelize]`](/dotnet/api/microsoft.visualstudio.testtools.unittesting.donotparallelizeattribute).
+By default, MSTest runs tests within the same assembly sequentially, which can lead to severe performance limitations. It is recommended to enable assembly attribute [`[assembly: Parallelize]`](../unit-testing-mstest-writing-tests-attributes.md#parallelizeattribute) to run tests in parallel, or if the assembly is known to not be parallelizable, to use explicitly the assembly level attribute [`[assembly: DoNotParallelize]`](../unit-testing-mstest-writing-tests-attributes.md#donotparallelizeattribute).
 
 The default configuration of `[assembly: Parallelize]` is equivalent to `[assembly: Parallelize(Scope = ExecutionScope.ClassLevel)]`, meaning that the parallelization will be set at class level (not method level) and will use as many threads as possible (depending on internal implementation).