fix: typo

Author: DavidVujic

CHANGELOG.md

@@ -4,7 +4,7 @@
 #### v 4.5.2 (2020-01-22)
 * fix: try an alternative shasum command when missing on Linux systems. Pull request [234](https://github.com/yfinkelstein/node-zookeeper/pull/234) by @hwzhangd
 
-#### V 4.5.1 (2019-12-09)
+#### v 4.5.1 (2019-12-09)
 * fix: add_auth expecting three arguments, add the missing `voidCb` parameter. Pull request [230](https://github.com/yfinkelstein/node-zookeeper/pull/230) by @wareczek
 
 #### v 4.5.0 (2019-11-05)