Remove two idea cards, use jq command for prizes section

Author: zimbatm

site/index.html

@@ -139,9 +139,6 @@ <h4>Demos at 4 pm, prizes after</h4>
     <div class="idea-card">
       <p>A mesh cache that shares Nix store paths over the local network at a conference</p>
     </div>
-    <div class="idea-card">
-      <p><code>nixos-rebuild</code> but it deploys to a VPS you actually own, with one command</p>
-    </div>
     <div class="idea-card">
       <p>What if your phone could cryptographically attest that its OS was built from a public config?</p>
     </div>
@@ -151,16 +148,13 @@ <h4>Demos at 4 pm, prizes after</h4>
     <div class="idea-card">
       <p>Peer-to-peer secret sharing for teams&mdash;no third-party vault service</p>
     </div>
-    <div class="idea-card">
-      <p>A tool that diffs what your NixOS system is <em>supposed</em> to run vs. what it <em>actually</em> runs</p>
-    </div>
   </div>
 
   <p class="muted-note">These are sparks, not boundaries. Build whatever you want. The only test: <em>does it give a real person more control over their own computing?</em></p>
 
   <!-- PRIZES -->
   <div class="section-num" id="prizes">05 PRIZES</div>
-  <div class="section-cmd"><span class="prompt">$</span> cat ./prizes.md</div>
+  <div class="section-cmd"><span class="prompt">$</span> jq . prizes.json</div>
 
   <p class="muted-note">All prizes are per team unless noted otherwise.</p>