Update index.ipynb

Following the update of index.rst, a corresponding update of index.ipynb is necessary.

Update index.ipynb
62f84f53 · l8l · Ricardo Vieira · 6bef816b · 62f84f53
--- a/doc/library/d3viz/index.ipynb
+++ b/doc/library/d3viz/index.ipynb
@@ -19,8 +19,7 @@
   "metadata": {},
   "source": [
    "``d3viz`` requires the [pydot](https://pypi.python.org/pypi/pydot)\n",
-    "package. [pydot-ng](https://github.com/pydot/pydot-ng) fork is better\n",
-    "maintained, and it works both in Python 2.x and 3.x. Install it with pip::"
+    "package. Install it with pip::"
   ]
  },
  {
@@ -31,7 +30,7 @@
   },
   "outputs": [],
   "source": [
-    "!pip install pydot-ng"
+    "!pip install pydot"
   ]
  },
  {