Error parsing links with a dot

[chykon]

Links in brackets located in CHANGELOG.md are parsed incorrectly if there is a dot at the end: a closing parenthesis is added to the address, which makes the link invalid.

Example. Version 0.3.2 contains a link that does not end with a dot and everything works correctly. Version 0.3.1 contains a dot after the parentheses, which makes the link invalid.

[isoos]

This seems to be a package:markdown issue, filed dart-lang/tools#1315, and keeping this open until the fix is deployed to pub.dev.

[isoos]

This seems to be fixed with the latest markdown and site release.