diff --git a/docs/index.html b/docs/index.html
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@@ -305,6 +305,28 @@ <h1>commit-guard</h1>
         </div>
       </section>
 
+      <section id="why">
+        <h2>Why commit-guard? <a href="#why" class="anchor">#</a></h2>
+        <ul>
+          <li>
+            <strong>NLP imperative detection.</strong> Descriptions must start
+            with an imperative verb, verified via nltk POS tagging — not a
+            hand-coded regex of "bad" words.
+          </li>
+          <li>
+            <strong>Signature verification without a local keyring.</strong>
+            Resolves the commit author via the GitHub API and verifies GPG/SSH
+            against their published <code>.gpg</code>/<code>.keys</code> — no
+            per-runner key management.
+          </li>
+          <li>
+            <strong>Strict by default.</strong> Subject format, body, trailers,
+            <code>Signed-off-by</code>, and signature all enforced out of the
+            box; opt out with <code>--disable</code>.
+          </li>
+        </ul>
+      </section>
+
       <section id="install">
         <h2>Install <a href="#install" class="anchor">#</a></h2>
         <div class="install-tabs">