Release v1.6.4

What's Changed

• fix docs link by @AngelMunoz in #6
• Broadcasts completeness and errors to all subject subscribers by @p1eXu5 in #7

New Contributors

• @AngelMunoz made their first contribution in #6
• @p1eXu5 made their first contribution in #7

Full Changelog: v1.6.3...v1.6.4