manual/intro: feature GPIO applet.

whitequark · whitequark · commit f180457dd6b9 · 2025-06-02T01:47:09.000Z
diff --git a/docs/manual/src/intro.rst b/docs/manual/src/intro.rst
@@ -42,6 +42,8 @@ The Glasgow software is a set of building blocks designed to eliminate incidenta
 What can I do with Glasgow?
 ---------------------------
 
+* control pins as :ref:`GPIO <applet.control.gpio>`
+
 * communicate via :ref:`UART <applet.interface.uart>`
 
   * automatically measure and adjust baud rate
