Add Example for TouchableOpacity.js
Add Example for TouchableOpacity.js

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Adding example with [react-native-web-player](https://github.com/dabbott/react-native-web-player)

Screenshot on http://localhost:8079/react-native/docs/touchableopacity.html
![react-native-touchableopacity](https://user-images.githubusercontent.com/13135332/30335218-bd32fb0e-9807-11e7-976d-5235402fdba8.png)
Closes https://github.com/facebook/react-native/pull/15911

Differential Revision: D5817180

Pulled By: TheSavior

fbshipit-source-id: 6399a53dabf8e3f0cf680aeb41d8afbaa2ce11e8

myntra/react-native,dikaiosune/react-native,hoastoolshop/react-native,frantic/react-native,rickbeerendonk/react-native,cdlewis/react-native,exponent/react-native,kesha-antonov/react-native,jevakallio/react-native,exponent/react-native,cdlewis/react-native,Bhullnatik/react-native,hoangpham95/react-native,arthuralee/react-native,exponent/react-native,kesha-antonov/react-native,rickbeerendonk/react-native,hoangpham95/react-native,kesha-antonov/react-native,javache/react-native,rickbeerendonk/react-native,pandiaraj44/react-native,jevakallio/react-native,ptmt/react-native-macos,dikaiosune/react-native,ptmt/react-native-macos,exponentjs/react-native,janicduplessis/react-native,rickbeerendonk/react-native,kesha-antonov/react-native,hoastoolshop/react-native,hoastoolshop/react-native,dikaiosune/react-native,ptmt/react-native-macos,hammerandchisel/react-native,janicduplessis/react-native,arthuralee/react-native,exponent/react-native,myntra/react-native,Bhullnatik/react-native,hammerandchisel/react-native,myntra/react-native,rickbeerendonk/react-native,javache/react-native,frantic/react-native,facebook/react-native,pandiaraj44/react-native,hammerandchisel/react-native,Bhullnatik/react-native,hoangpham95/react-native,facebook/react-native,janicduplessis/react-native,jevakallio/react-native,Bhullnatik/react-native,arthuralee/react-native,hoangpham95/react-native,ptmt/react-native-macos,hammerandchisel/react-native,exponentjs/react-native,jevakallio/react-native,dikaiosune/react-native,myntra/react-native,Bhullnatik/react-native,dikaiosune/react-native,javache/react-native,jevakallio/react-native,javache/react-native,cdlewis/react-native,frantic/react-native,cdlewis/react-native,hoangpham95/react-native,myntra/react-native,facebook/react-native,hammerandchisel/react-native,pandiaraj44/react-native,hoangpham95/react-native,ptmt/react-native-macos,facebook/react-native,rickbeerendonk/react-native,facebook/react-native,facebook/react-native,janicduplessis/react-native,dikaiosune/react-native,facebook/react-native,Bhullnatik/react-native,janicduplessis/react-native,frantic/react-native,ptmt/react-native-macos,javache/react-native,pandiaraj44/react-native,javache/react-native,arthuralee/react-native,cdlewis/react-native,exponentjs/react-native,pandiaraj44/react-native,rickbeerendonk/react-native,janicduplessis/react-native,exponent/react-native,exponentjs/react-native,exponent/react-native,arthuralee/react-native,kesha-antonov/react-native,rickbeerendonk/react-native,hoastoolshop/react-native,myntra/react-native,hammerandchisel/react-native,cdlewis/react-native,myntra/react-native,pandiaraj44/react-native,hammerandchisel/react-native,javache/react-native,myntra/react-native,ptmt/react-native-macos,dikaiosune/react-native,hoastoolshop/react-native,myntra/react-native,cdlewis/react-native,kesha-antonov/react-native,dikaiosune/react-native,hoastoolshop/react-native,kesha-antonov/react-native,ptmt/react-native-macos,exponent/react-native,exponentjs/react-native,frantic/react-native,exponent/react-native,jevakallio/react-native,janicduplessis/react-native,cdlewis/react-native,pandiaraj44/react-native,kesha-antonov/react-native,Bhullnatik/react-native,javache/react-native,hoangpham95/react-native,facebook/react-native,pandiaraj44/react-native,javache/react-native,janicduplessis/react-native,jevakallio/react-native,facebook/react-native,exponentjs/react-native,cdlewis/react-native,jevakallio/react-native,hoastoolshop/react-native,Bhullnatik/react-native,jevakallio/react-native,exponentjs/react-native,hammerandchisel/react-native,kesha-antonov/react-native,hoangpham95/react-native,exponentjs/react-native,hoastoolshop/react-native,rickbeerendonk/react-native