Add spacing below What It Does heading

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

Author: MDA2AV

docs/content/_index.md

@@ -30,6 +30,8 @@ layout: hextra-home
 
 <h2 style="font-size:2rem;font-weight:800;">What It Does</h2>
 
+<div style="height:16px"></div>
+
 Http11Probe sends a suite of crafted HTTP requests to each server and checks whether the response matches the exact expected behavior from the RFCs. Every server is tested identically, producing a side-by-side compliance comparison.
 
 <div style="height:20px"></div>