adding readme to examples with setup info and prerequesites

Author: nfriedly

examples/readme.md

@@ -0,0 +1,37 @@
+Watson Speech JavaScript SDK Examples
+=====================================
+
+This folder has a basic node.js server to host files and generate auth tokens and 
+several html files with different examples of using the Speech SDJ. 
+
+There are also a few audio files to test with in the public/ folder.
+
+
+Prerequisite
+------------
+
+* IBM Watson Speech to Text service credentials - see http://www.ibm.com/smarterplanet/us/en/ibmwatson/developercloud/doc/getting_started/gs-credentials.shtml
+* [Node.js](https://nodejs.org/en/) (see notes)
+
+
+Setup
+-----
+
+1. `cd` into the `examples/` directory and run `npm install` to grab dependencies
+2. edit `token-server.js` to include your service credentials
+3. run `npm start`
+4. Open your browser to http://localhost:3000/ to see the examples.
+
+
+Notes
+-----
+
+* The examples all use jQuery, but it is not required to use the Speech SDK.
+* The examples use a node.js server to generate tokens. Node.js is not requred, but *some server-side token generator is required*. 
+  The SDK will not accept your service credentials directly, and you can not use them to generate a token client-side. 
+  SDKs are available for [Node.js](https://github.com/watson-developer-cloud/node-sdk#authorization), 
+  [Java](https://github.com/watson-developer-cloud/java-sdk), 
+  [Python](https://github.com/watson-developer-cloud/python-sdk/blob/master/examples/authorization_v1.py), 
+  and there is a [REST API](http://www.ibm.com/smarterplanet/us/en/ibmwatson/developercloud/doc/getting_started/gs-tokens.shtml) 
+  for use with other languages (or `curl`).
+* The Speech SDK may be used in browserify or as a standalone library; all of the current examples use it as a standalone library for simplicity.