Name the example inf iterator of iterators sequence (#22)

Co-authored-by: Michael Ficarra <github@michael.ficarra.me>

Author: cmcaine

README.md

@@ -56,15 +56,15 @@ We should explore how to make this more ergonomic and functional.
 let digits = Iterator.concat(lows, [4, 5], highs);
 ```
 
-For the (rare) case of infinite iterators of iterators, use `flatMap` with the identity function.
+For the (rare) case of infinite iterators of iterators, use [`Iterator.prototype.flatMap`](https://tc39.es/ecma262/multipage/control-abstraction-objects.html#sec-iterator.prototype.flatmap) with the identity function.
 
 ```js
-function* p() {
+function* selfCountingSequenceHelper() {
   for (let n = 1;; ++n) {
     yield Array(n).fill(n);
   }
 }
-let repeatedNats = p().flatMap(x => x);
+let selfCountingSequence = selfCountingSequenceHelper().flatMap(x => x)
 ```
 
 ## prior art