add map and split examples

examples/data

@@ -0,0 +1,3 @@
+{"foo": 1}
+{"foo": 2}
+{"foo": 3, "bar": "test"}

examples/map.js

@@ -0,0 +1,15 @@
+var es = require('..')
+
+process.stdin
+    .pipe(es.map(function (data, callback) {
+        for (var i = 0; i < data.length; i++) {
+            if (data[i] == 0x61) {
+                data[i] = 0x41
+            }
+        }
+        callback(null, data)
+    }))
+    .pipe(process.stdout)
+
+// echo abcdabcd | node map.js 
+// AbcdAbcd

examples/split.js

@@ -0,0 +1,12 @@
+var es = require('..')
+
+process.stdin
+    .pipe(es.split())
+    .on('data', function (data) {
+        console.log('data: ' + data)
+    })
+
+// cat data | node map.js 
+// data: {"foo": 1}
+// data: {"foo": 2}
+// data: {"foo": 3, "bar": "test"}