[New Feature] Add web folder to support web documentation

docs/plugins/remark-snackplayer/README.md

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+<h1 align="center">Remark SnackPlayer</h1>
+
+<p align="center">Remark plugin to embed <a href="https://snack.expo.dev/">Expo Snack's</a> using Code Blocks</p>
+
+## Usage
+
+This plugin parses codeblocks with language set as `SnackPlayer` and replaces them with embedded Expo's SnackPlayers, you can also provide parameters along with the codeblock to set some basic details.
+
+### Example Code Block
+
+````
+```SnackPlayer name=Hello%20World description=This%20is%20a%20description
+import React from 'react';
+import { Text, View } from 'react-native';
+
+const YourApp = () => {
+  return (
+    <View style={{ flex: 1, justifyContent: "center", alignItems: "center" }}>
+      <Text>Try editing me! 🎉</Text>
+    </View>
+  );
+}
+
+export default YourApp;
+```
+````
+
+The above code snippet would look like this:
+
+<img width="783" alt="Screenshot 2020-10-03 at 1 11 19 AM" src="https://user-images.githubusercontent.com/11258286/94963203-67de3500-0515-11eb-974a-a2289c0bfdc8.png">
+
+### Parameters
+
+| Name               | Description                                               | Default             |
+| ------------------ | --------------------------------------------------------- | ------------------- |
+| name               | SnackPlayer name                                          | `"Example"`         |
+| description        | Description of the example                                | `"Example usage"`   |
+| dependencies       | Additional dependencies, eg. `"expo-constant"`            | `""`                |
+| platform           | Example platform                                          | `"web"`             |
+| supportedPlatforms | Supported platforms                                       | `"ios,android,web"` |
+| theme              | SnackPlayer theme, `"light"` or `"dark"`                  | `"light"`           |
+| preview            | Preview visible, `"true"` or `"false"`                    | `"true"`            |
+| loading            | iFrame loading attribute, `"auto"`, `"lazy"` or `"eager"` | `"lazy"`            |
+
+## Styling
+
+To style the Snack Player wrapper you can use `.snack-player` class.