array iterators can't be closed; don't use them in examples (#252)

README.md

@@ -252,11 +252,6 @@ iterator is consumed when some is called.
 #### Example
 
 ```JavaScript
-const iter = [1, 2, 3].values();
-
-iter.some(v => v > 1); // true
-iter.some(v => true); // false, iterator is already consumed.
-
 function* naturals() {
   let i = 0;
   while (true) {
@@ -265,6 +260,11 @@ function* naturals() {
   }
 }
 
+const iter = naturals().take(4);
+
+iter.some(v => v > 1); // true
+iter.some(v => true); // false, iterator is already consumed.
+
 naturals().take(4).some(v => v > 1); // true
 naturals().take(4).some(v => v == 1); // true, acting on a new iterator
 ```
@@ -277,11 +277,6 @@ value generated by the iterator passes the test function.
 Returns a boolean.
 
 ```JavaScript
-const iter = [1, 2, 3].values();
-
-iter.every(v => v >= 1); // true
-iter.every(v => false); // true, iterator is already consumed.
-
 function* naturals() {
   let i = 0;
   while (true) {
@@ -290,6 +285,11 @@ function* naturals() {
   }
 }
 
+const iter = naturals().take(10);
+
+iter.every(v => v >= 0); // true
+iter.every(v => false); // true, iterator is already consumed.
+
 naturals().take(4).every(v => v > 0); // false, first value is 0
 naturals().take(4).every(v => v >= 0); // true, acting on a new iterator
 ```