CHANGELOG.md in convert_unit-0.1.0 vs CHANGELOG.md in convert_unit-0.2.0

@@ -1,2 +1,13 @@
+## v0.2.0
+* Change module required location
+* Add module self method for get available unit conversion class
+* Add Density method conversion
+* Add Volumetric liquid flow
+* Add Volumetric gas flow
+
 ## v0.1.0
 * initial release
+* Length Unit
+* Area Unit
+* Mass Unit
+* Volume Unit