Wrong link for Diff code for Exercise.01

[lauriewu1]

Problem: compares branches starter code with exercise.01
solution: compare branches exercise.01 with exercise.01 solution

[tatsuyafujisaki]

I have noticed the same issue.

Here are steps to reproduce it.

1. Open https://classroom.udacity.com/nanodegrees/nd801/parts/ec45ffe9-2c4e-4b8d-ad76-d80c5905d926/modules/2ad3410b-6505-418c-9b74-2d4f67880313/lessons/240ea66a-cf72-48bf-8df8-d5ff353a6d47/concepts/b5bff7d4-f1f6-452f-9fff-2677298b6aa1 in a browser.
2. Check the checkbox of exercise.
3. Click on Diff.
   
4. The link is expected to open TLIB.01-Exercise-AddGradleDependency...TLIB.01-Solution-AddGradleDependency. However, TLIB.00-StartingCode...TLIB.01-Exercise-AddGradleDependency is actually opened.