Added more comments

src/dorkbox/network/other/SuspendWaiter.kt

@@ -3,6 +3,7 @@ package dorkbox.network.other
 import kotlinx.coroutines.channels.Channel
 
 // this is bi-directional waiting. The method names to not reflect this, however there is no possibility of race conditions w.r.t. waiting
+// https://stackoverflow.com/questions/55421710/how-to-suspend-kotlin-coroutine-until-notified
 // https://kotlinlang.org/docs/reference/coroutines/channels.html
 inline class SuspendWaiter(private val channel: Channel<Unit> = Channel(0)) {
     // "receive' suspends until another coroutine invokes "send"