Bar graph added.

node_modules/needle/examples/digest-auth.js

@@ -0,0 +1,16 @@
+var needle = require('./..');
+
+var opts = {
+  username: 'user3',
+  password: 'user3',
+  auth: 'digest'
+}
+
+needle.get('http://test.webdav.org/auth-digest/', opts, function(err, resp, body) {
+  console.log(resp.headers);
+
+  if (resp.statusCode == 401)
+    console.log('\nIt failed.')
+  else
+    console.log('\nIt worked!')
+});