feat: add ledger theme card to landing page

Author: ValerasNarbutas

index.html

@@ -598,6 +598,24 @@ <h2 class="section-title">10 distinctive themes</h2>
             </div>
           </div>
         </div>
+        <div class="theme-card">
+          <div class="theme-card-preview preview-ledger">
+            <span style="font-family:Georgia,serif;">&#8356; General Ledger</span>
+            <span class="preview-label">ledger</span>
+          </div>
+          <div class="theme-card-body">
+            <div class="theme-card-name">The General Ledger</div>
+            <div class="theme-card-desc">Accounting ledger aesthetic for CPAs and finance writers. Ruled-line background, columnar post list, debit/credit table classes, print-ready.</div>
+            <div class="theme-card-footer">
+              <span class="theme-price">$49</span>
+              <span class="theme-status status-available">Available</span>
+            </div>
+            <div class="theme-card-actions">
+              <a class="btn-demo" href="https://csswitch.github.io/jekyll-ledger-theme/" target="_blank" rel="noopener">Live demo &#8594;</a>
+              <a class="btn-buy" href="https://gumroad.com/l/csswitch-ledger" target="_blank" rel="noopener">Buy $49</a>
+            </div>
+          </div>
+        </div>
 
       </div>
     </div>