Improve text describing "corrupted sources" in acceptance test results

[barbeau]

Feature request

PR #848 implemented the acceptance test mechanism where new contributions are tested against a large number of existing GTFS datasets to see if they introduce new errors. Which is awesome! 🎉

A suggestion - I think the wording of the comment could be improved to make it more easily understandable to contributors.

Currently, as shown in #848 (comment), the text says:

Thank you for this contribution! 🍰✨🦄

Information about source corruption
0 out of 1248 sources are corrupted.

Acceptance test details
The changes in this pull request did not trigger any new errors on known GTFS datasets from the MobilityDatabase.
Download the full acceptance test report for commit 2d320f2 here (report will disappear after 90 days).

For new contributors, this raises questions like:

• What are these sources, and why could they be corrupted?
• If there are "corrupted sources", am I supposed to do something about it?

Proposed solution
Here is some proposed text that I think is easier to understand. It's a starting point, so please feel free to edit:

Thank you for this contribution! 🍰✨🦄

Acceptance test details

The changes in this pull request were successfully tested against 1248 of 1248 real-world GTFS datasets from the MobilityDatabase and no new errors were triggered.

Download the full acceptance test report for commit 2d320f2 here (report will disappear after 90 days).

Alternately, for corrupted sources:

Thank you for this contribution! 🍰✨🦄

Acceptance test details

The changes in this pull request were successfully tested against 1200 of 1248 real-world GTFS datasets from the MobilityDatabase and no new errors were triggered. 48 GTFS datasets were corrupted and could not be tested.

Describe alternatives you've considered
Do nothing - stick with the same text and explain the comment to anyone who asks about it.