docs for ignore regions

README.md

@@ -268,6 +268,7 @@ if (isRTL) {
   document.documentElement.setAttribute('dir', 'rtl')
 }
 
+// 2 visual tests will be created - one for LTR and one for RTL
 storiesOf('Components that support RTL', module)
   .add(
     'Some story',
@@ -279,6 +280,25 @@ storiesOf('Components that support RTL', module)
   )
 ```
 
+### `ignore`
+
+A single or an array of regions to ignore when checking for visual differences. For example:
+
+```js
+storiesOf('Components with ignored region', module)
+  .add(
+    'Some story',
+    () => <div>
+      <span>I am visually perfect!<span>
+      <span className="ignore-this">this should be ignored</span>
+    </div>,
+    {eyes: {
+      ignore: [{selector: '.ignore-this'}]
+    }}
+  )
+});
+```
+
 ## Running Eyes-Storybook in Docker
 
 When running the SDK in docker, there might be issues related to properly launching the internal chrome browser via puppeteer. If you seem to have such issues, set `runInDocker: true` in your config file. This will pass the internal chrome browser special arguments, as described [here](https://github.com/GoogleChrome/puppeteer/blob/master/docs/troubleshooting.md#tips).