Fixed react example

example/react/.gitignore

@@ -0,0 +1 @@
+static/

example/react/README.md

@@ -0,0 +1,9 @@
+# Quagga meets React
+
+This example uses webpack & babel to transpile/bundle the required files.
+
+## How to run the example
+
+```console
+> npm install && webpack
+```

example/react/src/components/Scanner.js

@@ -7,7 +7,7 @@ export default class Scanner extends React.Component {
         this._scanner = Quagga
             .decoder({readers: ['ean_reader']})
             .locator({patchSize: 'medium'})
-            .fromVideo({
+            .fromSource({
                 target: '.overlay__content',
                 constraints: {
                     width: 800,