Updated function names & added example rasterization notebook

Author: mtortora

examples/rasterize.ipynb

@@ -90,7 +90,7 @@
    "metadata": {},
    "outputs": [],
    "source": [
-    "# Generate green/magenta colormaps for DNA & cohesin, respectively\n",
+    "# Generate green/magenta colormaps for cohesin & DNA, respectively\n",
     "cm_green = LinearSegmentedColormap.from_list(\n",
     "        \"Green\", [(0, 0, 0), (0, 1, 0)], N=20)\n",
     "cm_magenta = LinearSegmentedColormap.from_list(\n",