diff --git a/matplotlib/matplotlib.ipynb b/matplotlib/matplotlib.ipynb
index cb0cb1d..912c391 100644
--- a/matplotlib/matplotlib.ipynb
+++ b/matplotlib/matplotlib.ipynb
@@ -11,6 +11,8 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
+    "Credits: Some content forked from [Parallel Machine Learning with scikit-learn and IPython](https://github.com/ogrisel/parallel_ml_tutorial) by Olivier Grisel\n",
+    "\n",
     "* Setting Global Parameters\n",
     "* Basic Plots\n",
     "* Histograms\n",