Added video option

README.md

@@ -13,7 +13,6 @@ $ npm install github:anatolykopyl/vue-three-d-mockup
 ```html
 <Mockup 
   screenImg="screen.png"
-  lightClr="hsl(0, 100%, 100%)"
 />
 ```
 
@@ -44,6 +43,20 @@ export default {
 ```
 
 ### props:
+
 - `screenImg`: path to image that will be displayed on the phones screen
-- `lightClr`: color of the light in the environment
+- `video`: the video element displayed on the phones screen. When using this option there are caveats, watch below
+- `lightClr`: color of the light
 - `phoneClr`: color of the phone
+- `rotation`: object with x, y and z rotation values
+
+### Caveats:
+
+- The `video` prop is unreactive, so when using it it's important to 
+only render the `Mockup` element when the video is loaded. Check out 
+[Demo.vue](src/Demo.vue) to see an example of how to do this.
+- The video on the model will not be shown if the original `<video>` 
+element is hidden with `display: none`, so use `visibility: hidden` 
+instead. 
+- The video may not be autoplaying if the original `<video>` element
+is scrolled off screen.