fix v0.1.4 changelog date

Signed-off-by: Jacob Lisi <[email protected]>

Author: jtlisi

CHANGELOG.md

@@ -2,7 +2,7 @@
 
 ## unreleased / master
 
-## v0.1.4 / 2020-02-04
+## v0.1.4 / 2020-03-10
 
 * [ENHANCEMENT] Add separate `chunktool` for operating on cortex chunk backends #23 #26
 * [ENHANCEMENT] Add `--disable-color` flag to `rules print`, `rules diff`, and `alertmanager get` command #25