Fix link + other docs tweaks.

Author: JimBobSquarePants

.github/CONTRIBUTING.md

@@ -29,7 +29,7 @@
 #### **Running tests and Debugging**
 
 * Expected test output is pulled in as a submodule from the [ImageSharp.Tests.Images repository](https://github.com/SixLabors/Imagesharp.Tests.Images/tree/master/ReferenceOutput). To succesfully run tests, make sure that you have updated the submodules!
-* Debugging (running tests in Debug mode) is only supported on .NET Core 2.1, because of JIT Code Generation bugs like [dotnet/coreclr#16443](https://github.com/dotnet/coreclr/issues/16443) or [dotnet/coreclr#20657](https://github.com/dotnet/coreclr/issues/20657)
+* Debugging (running tests in Debug mode) is only supported on .NET Core 2.1+, because of JIT Code Generation bugs like [dotnet/coreclr#16443](https://github.com/dotnet/coreclr/issues/16443) or [dotnet/coreclr#20657](https://github.com/dotnet/coreclr/issues/20657)
 
 #### **Do you have questions about consuming the library or the source code?**
 

.github/ISSUE_TEMPLATE/config.yml

@@ -1,7 +1,7 @@
 blank_issues_enabled: false
 contact_links:
     - name: Ask a Question
-      url: https://github.com/SixLabors/ImageSharp/discussions?discussions_q=category%3AHelp
+      url: https://github.com/SixLabors/ImageSharp/discussions?discussions_q=category%3AQ%26A
       about: Ask a question about this project.
     - name: Feature Request
       url: https://github.com/SixLabors/ImageSharp/discussions?discussions_q=category%3AIdeas

.github/workflows/build-and-test.yml

@@ -75,7 +75,7 @@ jobs:
                   CI: True
                   XUNIT_PATH: .\tests\ImageSharp.Tests # Required for xunit
 
-            - name: Store Output Images after failed tests
+            - name: Export Failed Output
               uses: actions/upload-artifact@v2
               if: failure()
               with: