Site: the user guide (phase 2): the basics, one page per App, Settings and Updates

Eleven pages under /guide/, written from the README, the milestone documents
and the Apps' own source: the keys, the Launcher, the Status Bar and the first
start; the LoRa Scanner, GNSS, Gemini, IRC, Wi-Fi tools, Notes, Storage and
System; Settings (with Wi-Fi) and Updates. Real screenshots where the site has
them, a Guide link in the navigation, and the home page points to it.

Co-Authored-By: Claude Sonnet 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01EhqxQ49eCju4CzKYNjZzwT

site/templates/index.html

@@ -68,7 +68,7 @@
     </article>
     {% endfor %}
   </div>
-  <p class="cards-note">Plus Settings, with its Wi-Fi and Firmware pages.</p>
+  <p class="cards-note">Plus Settings, with its Wi-Fi and Firmware pages. Every App has a page in the <a class="accent-link" href="/guide/">user guide</a>.</p>
 </section>
 
 <section class="wrap" id="screens" aria-labelledby="screens-title">