Add "Heat conduction around the FEAScript logo" results image

Author: nikoscham

assets/cold-plate-logo-results.png

@@ -135,6 +135,13 @@ <h1 class="top">
     </h1>
 
     <div id="banner">
+      <img
+        src="./assets/cold-plate-logo-results.png"
+        alt="Results of heat conduction around the FEAScript logo"
+      />
+      <p class="image-caption">
+        Heat conduction around the FEAScript logo
+      </p>
       <img
         src="./assets/advection-diffusion-1d-results.png"
         alt="Results of advection-diffusion with Gaussian source tutorial"
@@ -351,7 +358,7 @@ <h2 id="howtousefeascript"><a name="Getting Started"></a>How to Use FEAScript</h
       <a href="https://github.com/sponsors/FEAScript" class="sponsor-link">
         <img
           alt="GitHub Sponsors"
-          src="https://img.shields.io/static/v1?label=Sponsor&message=%E2%9D%A4&logo=GitHub&color=%23fe8e86)](https://github.com/sponsors/feascript"
+          src="https://img.shields.io/static/v1?label=Sponsor&message=%E2%9D%A4&logo=GitHub&color=%23fe8e86"
           style="vertical-align: middle"
         />
       </a>