- update readme and keywords

Author: patricktran

README.md

@@ -22,7 +22,7 @@ import ImageFadeIn from 'react-image-fade-in'
 class Example extends Component {
   render () {
     return (
-      <ImageFadeIn src={imageSrc} />
+      <ImageFadeIn width={640} height={480} src={imageSrc} />
     )
   }
 }

package.json

@@ -57,5 +57,12 @@
   },
   "files": [
     "dist"
+  ],
+  "keywords": [
+    "react",
+    "react-component",
+    "image",
+    "fade in image",
+    "fade image"
   ]
 }