Update README.md

Author: tacaswell

README.md

@@ -4,24 +4,24 @@
 
 To set up an enviroment for this tutorial use
 
-  $ conda create -n mpl-tutorial -c conda-forge -c conda-forge/label/rc 'matplotlib>1.6' pandas pytables ipython python=3
+    $ conda create -n mpl-tutorial -c conda-forge -c conda-forge/label/rc 'matplotlib>1.6' pandas pytables ipython python=3
 
 for *nix
 
-  $ source activate mpl-tutorial
+    $ source activate mpl-tutorial
 
 for windows
 
-  $ activate mpl-tutorial
+    $ activate mpl-tutorial
 
 ### for 99-get_data
 
-  $ conda install -c cartopy proj4
+    $ conda install -c cartopy proj4
 
 ## Running
 
 All of the examples should be run from IPython as
 
- %run -i NN-FILE.py
+   %run -i NN-FILE.py
 
 and sholud each be self-contained.