SEO: add Keep reading links between blog posts, plus manual and plugin links

blog/why-electrum-and-timelocks.html

@@ -295,6 +295,16 @@ footer .built{font-size:13px;color:var(--muted);margin-top:8px}
 </div>
 <p>If you are the kind of person who verifies instead of trusting — and if you hold your own keys, you probably are — both the plugin and the server are open source, MIT-licensed, and waiting for your review on our <a href="https://bitcoin-after.life/gitea/bitcoinafterlife" target="_blank" rel="noopener">Gitea</a>. The full protocol walkthrough is in the <a href="https://bitcoin-after.life/docs/protocol/how-it-works.html" target="_blank" rel="noopener">manual</a>, and we recommend everyone starts on testnet.</p>
 <p>Don't trust. Verify. Then, and only then, plan.</p>
+<aside class="related">
+<h2>Keep reading</h2>
+<ul style="padding-left:22px">
+<li><a href="proof-of-life.html">Proof of Life Without Surveillance: How Your Wallet Tells the Protocol You're Still Here</a></li>
+<li><a href="it-all-starts-with-the-seed.html">It all starts with the seed</a></li>
+<li><a href="run-a-will-executor.html">Run a Will-Executor: Earn Bitcoin Fees by Powering Decentralized Inheritance</a></li>
+</ul>
+<p>New to Bitcoin After Life? Read the <a href="https://bitcoin-after.life/docs/">user manual</a> or <a href="../index.html#plugin">get the Electrum plugin</a>.</p>
+</aside>
+
 </article>
 
 <div class="back">