Suggest Maybe#toSingle in Maybe#defaultIfEmpty documentation #5480
Description
Looking at http://reactivex.io/RxJava/2.x/javadoc/io/reactivex/Maybe.html#defaultIfEmpty%28T%29, I was surprised to find it didn't return Single. Searching in closed issues found the answer: #5417. Perhaps documentation could be improved by explicitly mentioning toSingle as an alternative?