Add myself to the AUTHORS file; Add changelog entry

Author: David

AUTHORS

@@ -17,6 +17,7 @@ Charles Pick <charles@codemix.com> (https://github.com/phpnode/)
 Christian Flach <github@christianflach.de> (https://github.com/cmfcmf/)
 Dan Selman <danscode@selman.org> (https://github.com/dselman)
 David Berneda <david@steema.com>
+David Sharer <git@davidsharer.com> (https://github.com/david-sharer/)
 Futago-za Ryuu <futagoza.ryuu@gmail.com> (https://github.com/futagoza/)
 Jakub Vrana <jakub@vrana.cz> (https://github.com/vrana/)
 Jason Davies <jason@jasondavies.com> (https://github.com/jasondavies/)

CHANGELOG.md

@@ -17,6 +17,8 @@ Released: TBD
 
 ### Bug fixes
 
+- Adjust repository's Git configuration around CR/LF normalization. [#639](https://github.com/peggyjs/peggy/pull/639)
+
 5.0.5
 -----