add Litecoin donation option

static/donate.html

@@ -54,6 +54,7 @@
                     <li><a href="#zcash">Zcash</a></li>
                     <li><a href="#ethereum">Ethereum</a></li>
                     <li><a href="#cardano">Cardano</a></li>
+                    <li><a href="#litecoin">Litecoin</a></li>
                     <li><a href="#paypal">PayPal</a></li>
                     <li><a href="#e-transfer">Interac e-Transfer</a></li>
                 </ul>
@@ -182,6 +183,26 @@
                 <p><strong>We aren't looking for donations of tokens, only Cardano itself.</strong></p>
             </section>
 
+            <section id="litecoin">
+                <h2><a href="#litecoin">Litecoin</a></h2>
+
+                <p>Litecoin can be used to make donations to the non-profit GrapheneOS
+                Foundation.</p>
+
+                <p>You can send Litecoin donations to the following Bech32 (Segwit) address:</p>
+
+                <div class="coin-address">
+                    <a href="litecoin:ltc1qzssmqueth6zjzr95rkluy5xdx9q4lk8vyrvea9?label=GrapheneOS%20Foundation&amp;message=Donation%20to%20GrapheneOS%20Foundation" rel="nofollow">
+                        <img src="/donate-litecoin.png" alt="Litecoin donation QR code"/>
+                        <p>ltc1qzssmqueth6zjzr95rkluy5xdx9q4lk8vyrvea9</p>
+                    </a>
+                </div>
+
+                <p>We recommend using the lowest fee tier recommended by your wallet since the
+                transaction taking hours or even a couple days is fine. An even lower custom fee
+                isn't recommended unless you're going to monitor it and bump the fee with RBF.</p>
+            </section>
+
             <section id="paypal">
                 <h2><a href="#paypal">PayPal</a></h2>