Add changelog.

AnaghaMurtarkar · AnaghaMurtarkar · commit 19a72ff0b87c · 2019-05-21T17:59:22.000+05:30
diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -1,4 +1,4 @@
-[OST JAVA SDK v2.1.0](https://github.com/ostdotcom/ost-sdk-java/tree/v2.0.0)
+[OST JAVA SDK v2.1.0](https://github.com/ostdotcom/ost-sdk-java/tree/v2.1.0)
 ---
 
 * Added base tokens module to V2 API's

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-[OST JAVA SDK v2.1.0](https://github.com/ostdotcom/ost-sdk-java/tree/v2.0.0)`
	`1`	`+[OST JAVA SDK v2.1.0](https://github.com/ostdotcom/ost-sdk-java/tree/v2.1.0)`
`2`	`2`	`---`
`3`	`3`
`4`	`4`	`* Added base tokens module to V2 API's`