Apply suggestions from code review

Co-authored-by: Katelyn FitzGerald <[email protected]>

Author: mathause

doc/source/tutorials/wrf_workshop_2019.rst

@@ -81,7 +81,8 @@ For Linux:
 Step 2: Download Miniconda
 ----------------------------
 
-For this tutorial, you will need to download and install Miniconda.
+For this tutorial, you will need to download and install Miniconda.  We are 
+going to use Python 3.7, but it will also work with Python 2.7.
 
 Please use the appropriate link below to download Miniconda for your operating 
 system. 
@@ -229,7 +230,7 @@ Follow the instructions below to create the tutorial_2019 environment.
 
       Type or copy this command in to your command terminal::
       
-          conda create -n tutorial_2019 python=3.11 matplotlib cartopy netcdf4 jupyter git ffmpeg wrf-python
+          conda create -n tutorial_2019 python=3.7 matplotlib cartopy netcdf4 jupyter git ffmpeg wrf-python
           
       Type "y" when prompted.  It will take several minutes to install everything.