More examples in README.

README.md

@@ -7,6 +7,12 @@ A thin Node.js client for the ESRI GeoServices API.
 
 http://www.esri.com/library/whitepapers/pdfs/geoservices-rest-spec.pdf
 
+### Usage
+Require:
+```javascript
+var geoservices = require('geoservices');
+```
+
 ### Using Map Services
 Export an image of a map:
 ```javascript
@@ -44,6 +50,58 @@ geoservices.get(options, function(result) {
 });
 ```
 
+An Identify operation on a map looks like this:
+```javascript
+var options = {
+  host: 'sampleserver1.arcgisonline.com',
+  path: '/ArcGIS/rest/services/Specialty/ESRI_StateCityHighway_USA/MapServer/identify',
+  params: {
+    geometryType: 'esriGeometryPoint',
+    geometry: '-120,40',
+    tolerance: 10,
+    mapExtent: '-119,38,-121,41',
+    imageDisplay: '400,300,96',
+    returnGeometry: true
+  }
+};
+
+geoservices.get(options, function(result) {
+  console.log(result);
+});
+```
+
+Query by attributes:
+```javascript
+var options = {
+  host: 'sampleserver1.arcgisonline.com',
+  path: '/ArcGIS/rest/services/Specialty/ESRI_StateCityHighway_USA/MapServer/1/query',
+  params: {
+    where: 'UPPER(STATE_NAME)=UPPER(\'colorado\')'
+  }
+};
+
+geoservices.get(options, function(result) {
+  console.log('Found: ' + result.features[0].attributes.STATE_NAME);
+});
+```
+
+Spatial query:
+```javascript
+options = {
+  host: 'sampleserver1.arcgisonline.com',
+  path: '/ArcGIS/rest/services/Specialty/ESRI_StateCityHighway_USA/MapServer/1/query',
+  params: {
+    geometry: '-125.4,35.2,-118.7,43.8',
+    geometryType: 'esriGeometryEnvelope',
+    where: 'POP1999>5000000'
+  }
+};
+
+geoservices.get(options, function(result) {
+  console.log('Found: ' + result.features[0].attributes.STATE_NAME);
+});
+```
+
 ## Contributing
 In lieu of a formal styleguide, take care to maintain the existing coding style. Add unit tests for any new or changed functionality.