Latest version of com.squareup.retrofit2:adapter-rxjava
https://javadoc.io/doc/com.squareup.retrofit2/adapter-rxjava
Current version 2.0.0-beta4
https://javadoc.io/doc/com.squareup.retrofit2/adapter-rxjava/2.0.0-beta4
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/com.squareup.retrofit2/adapter-rxjava/2.0.0-beta4/package-list