Update changelog for 2.0.0b1

    This commit was created by changelog-from-release in 'Post release' CI workflow

Author: pbashyal-nmdp

CHANGELOG.md

@@ -776,4 +776,4 @@ yes
 [0.0.15]: https://github.com/nmdp-bioinformatics/py-ard/compare/0.0.14...0.0.15
 [0.0.14]: https://github.com/nmdp-bioinformatics/py-ard/tree/0.0.14
 
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+<!-- Generated by https://github.com/rhysd/changelog-from-release v3.9.1 -->