cask layout: fix requirements label

Author: EricFromCanada

_layouts/cask.html

@@ -84,7 +84,7 @@
         {%- endcapture -%}
     {%- endif -%}
     {%- if requirements.size > 0 %}
-<p>Current version requires: {{ requirements }}</p>
+<p>Requirements: {{ requirements }}</p>
     {%- endif -%}
 {%- endif -%}