update CHANGELOG

Author: kwunyeung

CHANGLOG.md

@@ -1,12 +1,17 @@
 # CHANGELOG
 
-## [Unreleased]
+## [v0.1.2]
 
 * [#45] Fixed accounts list resolver
 * Return validator downtime blocks in resolver
 * Return validator proposed blocks in resolver
 * Make `validatorGroup` in `Validator` schema not mandatory
 
+## v0.1.1
+
+* Temporally disabled indexing validator uptime
+* Update validator indexing method
+
 ## First Release v0.1.0
 
 * Index validators directly instead of reading from validator groups