Change the formatting of the section header

Changing the formatting of the "Case Studies" section header to match the rest.

Author: InessaPawson

config.yaml

@@ -27,7 +27,7 @@ params:
   # Customizable navbar. For a dropdown, add a "sublinks" list.
 
   section3:
-    title: Case Studies
+    title: CASE STUDIES
     features:
     - title: First Image of a Black Hole
       text: How NumPy, together with libraries like SciPy and Matplotlib that depend on NumPy, enabled the Event Horizon Telescope to produce the first ever image of a black hole