some last-bits of changes

photutils/01_photutils_background_estimation.ipynb

@@ -579,17 +579,17 @@
     "\n",
     "The `photutils` package provides a powerful tool in the `Background2D` class, allowing users to easily estimate and subtract spatially variant background signals from their data.\n",
     "\n",
-    "##### To continue with this `photutils` tutorial, go on to the [source detection notebook](02_photutils_source_detection.ipynb)."
+    "**To continue with this `photutils` tutorial, go on to the [source detection notebook](02_photutils_source_detection.ipynb).**"
    ]
   },
   {
    "cell_type": "markdown",
    "metadata": {},
    "source": [
     "---\n",
-    "<i>August 2018\n",
+    "<i>September 2018\n",
     "\n",
-    "Author: Lauren Chambers ([email protected])\n",
+    "Author: Lauren Chambers ([email protected]), Erik Tollerud ([email protected])\n",
     "\n",
     "For more examples and details, please visit the [photutils](http://photutils.readthedocs.io/en/stable/index.html) documentation.</i>"
    ]