Updated version number and added code examples.

Author: m-mohr

README.md

@@ -4,21 +4,85 @@ JavaScript client for the openEO API.
 
 [![Build Status](https://travis-ci.org/Open-EO/openeo-js-client.svg?branch=master)](https://travis-ci.org/Open-EO/openeo-js-client)
 
-This client is in **version 0.3.2** and supports **openEO API versions 0.3.0 and 0.3.1**. Legacy versions are available as releases.
+This client is in **version 0.3.3** and supports **openEO API versions 0.3.0 and 0.3.1**. Legacy versions are available as releases.
 
 ## Usage
 This library can run in a recent browser supporting ECMAScript 2015 or node.js.
 
 To use it in a browser environment simply add the following code to your HTML file:
-```
+```html
 <script src="https://cdn.jsdelivr.net/npm/axios/dist/axios.min.js"></script>
 <script src="https://cdn.jsdelivr.net/npm/@openeo/js-client/openeo.js"></script>
 ```
 
-To install it with npm: `npm install @openeo/js-client`
+To install it with npm run: `npm install @openeo/js-client`
+
+### Running a job
+
+```js
+// Import the library if running in a nodeJS environment
+// const { OpenEO } = require('@openeo/js-client');
+
+var obj = new OpenEO();
+// Show the client version
+console.log("Client Version: " +obj.version());
+
+try {
+  // Connect to the back-end
+  var con = await obj.connect("https://earthengine.openeo.org/v0.3", "basic", {username: "group1", password: "test123"});
+
+  // Show implemented API version of the back-end
+  var capabilities = await con.capabilities();
+  console.log("Server API version: " +capabilities.version());
+
+  // List collection names
+  var collections = await con.listCollections();
+  console.log("Collections: " +collections.collections.map(c => c.name));
+
+  // List process ids
+  var processes = await con.listProcesses();
+  console.log("Processes: " + processes.processes.map(p => p.name));
+  
+  // List supported file types
+  var fileTypes = await con.listFileTypes();
+  console.log("Files types: " + Object.keys(fileTypes.formats));
+  
+  // Check whether synchronous previews are supported
+  var syncSupport = capabilities.hasFeature("execute");
+  console.log("Synchronous previews: " + (syncSupport ? "supported" : "NOT supported"));
+  
+  // Request a preview synchronously for a process graph
+  if (syncSupport) {
+    // Derives maximum NDVI measurements over pixel time series of Sentinel 2 imagery
+    var processGraph = {
+      "imagery": {
+        "red": "B4",
+        "nir": "B8",
+        "imagery": {
+          "extent": ["2018-12-01T00:00:00Z","2018-12-31T23:59:59Z"],
+          "imagery": {
+            "extent": {"west": 8.265169,"south": 52.453917,"east": 8.42035,"north": 52.576767},
+            "imagery": {
+              "process_id": "get_collection",
+              "name": "COPERNICUS/S2"
+            },
+            "process_id": "filter_bbox"
+          },
+          "process_id": "filter_daterange"
+        },
+        "process_id": "NDVI"
+      },
+      "process_id": "max_time"
+    };
+  	var preview = await con.execute(processGraph, "png");
+  	// This returns a Blob object with data you could further process or show.
+  }
+} catch(e) {
+  console.log(e);
+}
+```
+
 
-Dependencies required to run the openEO JS client:
-* [axios](https://github.com/axios/axios)
 
 ## Interactive JS Editor