Renaming the sample folder to match Jupyter Notebook's, making the language type markup, and adding a real sample file instead of a dummy one

lib/linguist/languages.yml

@@ -1695,7 +1695,7 @@ Julia:
   ace_mode: julia
 
  Jupyter Notebook:
-  type: programming
+  type: markup
   ace_mode: json
   color: "#F37626"
   extensions:

samples/Jupyter-Notebook/JupyterNotebook.ipynb

@@ -1,57 +0,0 @@
-{
- "cells": [
-  {
-   "cell_type": "markdown",
-   "metadata": {},
-   "source": [
-    "# HELLO LINGUIST\n",
-    "\n",
-    "** This is a sample notebook to be used by [Linguist](https://github.com/github/linguist) ** "
-   ]
-  },
-  {
-   "cell_type": "code",
-   "execution_count": 5,
-   "metadata": {
-    "collapsed": false,
-    "scrolled": false
-   },
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "Here is the content: information\n"
-     ]
-    }
-   ],
-   "source": [
-    "def showContent(content):\n",
-    "    print(\"Here is the content: \" + content)\n",
-    "\n",
-    "showContent(\"information\")"
-   ]
-  }
- ],
- "metadata": {
-  "kernelspec": {
-   "display_name": "Python 3",
-   "language": "python",
-   "name": "python3"
-  },
-  "language_info": {
-   "codemirror_mode": {
-    "name": "ipython",
-    "version": 3
-   },
-   "file_extension": ".py",
-   "mimetype": "text/x-python",
-   "name": "python",
-   "nbconvert_exporter": "python",
-   "pygments_lexer": "ipython3",
-   "version": "3.4.3"
-  }
- },
- "nbformat": 4,
- "nbformat_minor": 0
-}