Note about Jupyter and kernel management

setup.ipynb

@@ -112,7 +112,13 @@
     "\n",
     "This should launch a browser that takes you to a view of the directory you're in. You can then open notebooks for working and create new notebooks.\n",
     "\n",
-    "A major advantage of working with Anaconda is that you can switch virtual environments from inside a notebook, via the __Kernal__ menu."
+    "A major advantage of working with Anaconda is that you can switch virtual environments from inside a notebook, via the __Kernel__ menu. If this isn't an option for you, then run this command while inside your virtual environment:\n",
+    "\n",
+    "```python -m ipykernel install --user --name nlu --display-name \"nlu\"```\n",
+    "\n",
+    "(If you named your environment something other than `nlu`, then change the `--name` and `--display-name` values.) \n",
+    "\n",
+    "[Additional discussion of Jupyter and kernels.](https://stackoverflow.com/questions/39604271/conda-environments-not-showing-up-in-jupyter-notebook)"
    ]
   },
   {