Update CHANGELOG

CHANGELOG.md

@@ -1,3 +1,17 @@
+## 0.3.0 (2019/05/23)
+
+INCOMPATIBILITIES AND NOTES:
+
+* Terraform v0.12 support ([#14](https://github.com/minamijoyo/tfschema/pull/14))
+
+You can use both Terraform v0.11/v0.12 supported providers.
+
+* Change type notation to HCL2 type annotation ([#16](https://github.com/minamijoyo/tfschema/pull/16))
+
+For most tfschema users, this appears as if the type notation had just been changed to lowercase.
+It was originally capitalized because cty's Go type was capitalized.
+I know we can still use capitalized letters for maximum compatibility, but I believe that it will be easier to be consistent to use HCL2 style when representing complex data types.
+
 ## 0.2.0 (2018/08/31)
 
 INCOMPATIBILITIES AND NOTES: