Issue # 1697 FIX - creates an example script that shows how to use the SSCAN iterator (#1699)

* #1697 fix for set scan example

* adds the js file

* adds comment

* Minor layout and comment adjustment.

Co-authored-by: srawat2 <shashank19aug>
Co-authored-by: Simon Prickett <simon@redislabs.com>

Closes #1697.

examples/set-scan.js

@@ -0,0 +1,19 @@
+// An example script that shows how to use the SSCAN iterator functionality to retrieve the contents of a Redis set.
+// Create the set in redis-cli with this command:
+//     sadd setName a b c d e f g h i j k l m n o p q
+
+import { createClient } from 'redis';
+
+async function setScan() {
+  const client = createClient();
+  await client.connect();
+
+  const setName = 'setName';
+  for await (const member of client.sScanIterator(setName)) {
+    console.log(member);
+  }
+
+  await client.quit();
+}
+
+setScan();