Fix button visibility

index.rst

@@ -51,23 +51,28 @@ GSoC @ BeagleBoard.org
    .. grid-item:: 
 
       .. button-ref:: gsoc-contributor-guide
-         :color: dark
+         :color: info
          :outline:
          :expand:
 
    .. grid-item::
       .. button-ref:: gsoc-project-ideas
-         :color: dark
+         :color: info
          :outline:
          :expand:
 
    .. grid-item::
 
       .. button-ref:: gsoc-proposal-guide
-         :color: dark
+         :color: info
          :outline:
          :expand:
 
+.. admonition:: Did you know?
+
+   BeagleBoard.org has been accepted to be a mentoring organization in the 
+   Google Summer of Code (GSoC) for twelve previous years!
+
 
 .. admonition:: BeagleBoard.org background
    :class: admonition-clock-back