Added a link to java-otp v0.1.

Author: jchambers

README.md

@@ -15,7 +15,7 @@ You can download java-otp as a jar file (it has no dependencies) from the [GitHu
 </dependency>
 ```
 
-java-otp works with Java 8 or newer. If you need support for versions of Java older than Java 8, you may try using java-otp v0.1 (although it is no longer supported).
+java-otp works with Java 8 or newer. If you need support for versions of Java older than Java 8, you may try using [java-otp v0.1](https://github.com/jchambers/java-otp/releases/tag/java-otp-0.1.0) (although it is no longer supported).
 
 ## Usage