adding images

IHaskell.ipynb

@@ -1180,9 +1180,26 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "Like with `:info`, the Hoogle directives use the IPython"
+      "Like with `:info`, the Hoogle directives use the IPython documentation pager to show you their output. You can press Escape to dismiss the pager. If you're reading this in it's HTML form, the output looks like this:\n",
+      "\n",
+      "![Documentation for filterM](https://raw2.github.com/gibiansky/IHaskell/master/images/doc-demo.png)"
+     ]
+    },
+    {
+     "cell_type": "markdown",
+     "metadata": {},
+     "source": [
+      "The other provided command is `:hoogle`. This does a normal Hoogle search, and thus lets you use imperfect matching and searching by type signature."
      ]
     },
+    {
+     "cell_type": "code",
+     "collapsed": false,
+     "input": [],
+     "language": "python",
+     "metadata": {},
+     "outputs": []
+    },
     {
      "cell_type": "markdown",
      "metadata": {},