add small comment about matplotlib warnings

kbarnhart · kbarnhart · commit e20b96975f95 · 2018-10-09T11:33:39.000-06:00
diff --git a/lithology/lithology_and_litholayers.ipynb b/lithology/lithology_and_litholayers.ipynb
@@ -23,7 +23,7 @@
     "\n",
     "To start, we will import the necessary modules. A note: this tutorial uses the [HoloViews package](http://holoviews.org) for visualization. This package is a great tool for dealing with multidimentional annotated data (e.g. an xarray dataset). If you get an error on import, consider updating dask (this is what the author needed to do in April 2018). You will also need to have the [Bokeh](https://bokeh.pydata.org/en/latest/) and [Matplotlib](https://matplotlib.org) packages installed.\n",
     "\n",
-    "In testing we've seen some users have an error raised related to the matplotlib backend. "
+    "In testing we've seen some users have a warning raised related to the matplotlib backend. In our testing it was OK to ignore these errors. "
    ]
   },
   {

Original file line number	Diff line number	Diff line change
`@@ -23,7 +23,7 @@`
`23`	`23`	`"\n",`
`24`	`24`	`"To start, we will import the necessary modules. A note: this tutorial uses the [HoloViews package](http://holoviews.org) for visualization. This package is a great tool for dealing with multidimentional annotated data (e.g. an xarray dataset). If you get an error on import, consider updating dask (this is what the author needed to do in April 2018). You will also need to have the [Bokeh](https://bokeh.pydata.org/en/latest/) and [Matplotlib](https://matplotlib.org) packages installed.\n",`
`25`	`25`	`"\n",`
`26`		`- "In testing we've seen some users have an error raised related to the matplotlib backend. "`
	`26`	`+ "In testing we've seen some users have a warning raised related to the matplotlib backend. In our testing it was OK to ignore these errors. "`
`27`	`27`	`]`
`28`	`28`	`},`
`29`	`29`	`{`