automerge: 9dbb002 * commit '9dbb002c88fb85c8b3d7f512b789f183fe8361ad': docs: Fixed broken urls in the UI testing training main page and revised intro to the 'Testing UI for a Single App' class.
automerge: 9dbb002 * commit '9dbb002c88fb85c8b3d7f512b789f183fe8361ad': docs: Fixed broken urls in the UI testing training main page and revised intro to the 'Testing UI for a Single App' class.