update data download instructions

Author: cadenmyers13

docs/source/getting-started.rst

@@ -136,7 +136,6 @@ To list and copy example scripts and data to your working directory, type,
         ch06RefineCrystalStructureGen
         ch07StructuralPhaseTransitions
         ch08NPRefinement
-        ch10DisorderedNanostructuredFilms
         ch11ClusterXYZ
 
     To copy the example for bulk Ni PDF fitting, type,
@@ -145,7 +144,7 @@ To list and copy example scripts and data to your working directory, type,
 
         cmi example copy ch03NiModelling
 
-    This will copy the example directory ``ch03NiModelling`` to your working directory. Within this directory exists
+    This will copy the example directory ``ch03NiModelling`` to your current working directory. Within this directory exists
     the scripts and data to fit the bulk Ni PDF.
 
     You can then run the fitting script with,

docs/source/tutorials/index.rst

@@ -40,10 +40,15 @@ to fit the same Ni PDF with PDFgui.
 
 .. admonition:: Data Download
 
-    First, visit `this link <https://github.com/Billingegroup/pdfttp_data/raw/main/ch03NiModelling/data/Ni.cif>`_ and download the files for this tutorial:
+   To download the data and scripts for this fit, type in your command line,
 
-    - ``Ni.cif``
-    - ``Ni.gr``
+   .. code-block:: bash
+
+      cmi example copy ch03NiModelling
+
+   This will copy the example directory ``ch03NiModelling`` to your current working directory.
+   Within this directory exists data for this exercise and a script to fit the bulk Ni PDF.
+   Below walks you through the code in the script step-by-step.
 
 1. To start, we must first import all necessary modules and packages.