[ci skip] tweak docs and add ocaml syntax coloring support (#361)

* add docs back to master branch

* remove unnecessary files

* [ci skip] [doc] add highlight support for ocaml

Author: bobzhang

docs/OCaml-call-JS.md

@@ -138,7 +138,8 @@ gives it a type and customized attributes
    let f = add 3 4
    ```
    Will be compiled as
-   ```OCaml
+
+   ```js
    var U = require("x")
    var f = U.add(3,4)
    ```
@@ -173,7 +174,7 @@ On top of this we can write normal OCaml functions, for example:
 
    The compiler would generate code as below:
 
-   ```ocaml
+   ```js
    var Assert = require("assert");
    var List = require("../stdlib/list");
 

docs/_Sidebar.md

@@ -1,5 +1,7 @@
 **[Home](./index.md)**
 
+**[Playground](https://bloomberg.github.io/bucklescript/js-demo)**
+
 **Get Started**
 * [Installation](./Installation.md)
 * [Create a simple example with NPM](./Create-a-simple-example-with-NPM.md)

docs/_template.html.tpl

@@ -17,7 +17,7 @@
     <!-- Optional theme -->
     <link rel="stylesheet" href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap-theme.min.css">
     <link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.3.0/styles/default.min.css">
-    <script src="//cdnjs.cloudflare.com/ajax/libs/highlight.js/9.3.0/highlight.min.js"></script>
+    <script src="js/highlight.pack.js"></script>
 
     <!-- Custom CSS -->
     <link href="css/simple-sidebar.css" rel="stylesheet">

docs/build-doc.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+set -e
+node process.js
+cp -r dist/* $BUCKLESCRIPT_DOC

docs/dist/js/highlight.pack.js

@@ -8,7 +8,7 @@ var path = require('path')
 var oldrender = new marked.Renderer()
 renderer.link = function(href,title,text){
     var ext = path.extname(href)
-    if(!title && (ext === ".md" || ext  === "")){
+    if(!title && (ext === ".md" )){
         return `<a href="${path.join(path.dirname(href),path.basename(href,".md"))+'.html'}">${text}</a>` 
     } else{
         return oldrender.link(href,title,text);