update manual install instructions

we are not packaging the dependcies into zips

Author: aoberoi

README.md

@@ -37,9 +37,9 @@ dependencies {
 
 ## Manually:
 
-Download the zip file for the latest release from the
-[Releases](https://github.com/opentok/opentok-java-sdk/releases) page. This zip contains a jars for
-the OpenTok Java SDK and its dependencies. Include these in the classpath for your own project by
+Download the jar file for the latest release from the
+[Releases](https://github.com/opentok/opentok-java-sdk/releases) page. Include it in the classpath
+for your own project by
 [using the JDK directly](http://docs.oracle.com/javase/7/docs/technotes/tools/windows/classpath.html)
 or in your IDE of choice.