Update the Debugging QA Test Failures Page

Why is this change being made?

I was going through the instructions and encountered a case where I hadn't the docker test network set up already, and encountered an error on running the test docker container against the test network.

So I added an instruction to ensure this is up and running.

Does this MR meet the acceptance criteria?

Assign to DRI

• Did you assign this change to the correct DRI of the page or information you are changing?

Conformity

• Added description to this MR explaining the reasons for the proposed change, per say-why-not-just-what