Add CHANGELOG.md to Diff.cabal, fix formatting in CHANGELOG.md.
#5
| Job | Run time |
|---|---|
| 3m 11s | |
| 4m 3s | |
| 3m 29s | |
| 3m 7s | |
| 3m 26s | |
| 3m 4s | |
| 1m 52s | |
| 1m 44s | |
| 1m 57s | |
| 3m 28s | |
| 2m 3s | |
| 1m 58s | |
| 33m 22s |