Latest version of io.reactivex.rxjava2:rxkotlin
https://javadoc.io/doc/io.reactivex.rxjava2/rxkotlin
Current version 2.4.0-beta.1
https://javadoc.io/doc/io.reactivex.rxjava2/rxkotlin/2.4.0-beta.1
package-list path (used for javadoc generation -link option)
https://javadoc.io/doc/io.reactivex.rxjava2/rxkotlin/2.4.0-beta.1/package-list