[#113,docs/tutorial][l]: tutorial-basics written giving introduction to dataset and associated functionality.

* Minor corrections to several other parts of docs.

_includes/tutorial-basics-ex-2.js

@@ -0,0 +1,13 @@
+// must have a div with class="ex-1"
+var $el = $('.ex-2');
+
+// query with text 'UK' - this will attempt to match any field for UK
+// Also limit the query to return a maximum of 2 results using the size attribute 
+
+// query function has asynchronous behaviour and returns a promise object
+// (even for the case of in memory data where querying in fact happens synchronously)
+// On completion the display function will be called
+dataset.query({q: 'UK', size: 2}).done(function() {
+  display(dataset);
+});
+