Update index.html

Author: paigeduffin

docs/index.html

@@ -238,7 +238,10 @@ <h2>Expected files and directory structure</h2>
       <p>This tutorial includes four example input files that can be
       used to run the complete workflow:</p>
       <ul>
-      <li><code>example_pixy_fst_data.csv</code>: windowed <em>F<sub>ST</sub></em> output
+      <li><a class="example-file-button"
+   href="https://github.com/paigeduffin/meadow_plot_tutorial/blob/main/input/example_pixy_fst_data.csv">
+  example_pixy_fst_data.csv
+</a>: windowed <em>F<sub>ST</sub></em> output
       data containing <code>pop1</code>, <code>pop2</code>,
       <code>chromosome</code>, <code>window_pos_1</code>,
       <code>window_pos_2</code>, and <code>avg_wc_fst</code></li>