added docs to the repo

docs/_examples/create.asciidoc

@@ -0,0 +1,18 @@
+.Create a document
+[source,js]
+---------
+client.create({
+  index: 'myindex',
+  type: 'mytype',
+  id: '1',
+  body: {
+    title: 'Test 1',
+    tags: ['y', 'z'],
+    published: true,
+    published_at: '2013-01-01',
+    counter: 1
+  }
+}, function (error, response) {
+  // ...
+});
+---------