Snapshot of JC3636W518EN kit before demo folder cleanup

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

2-Program Example/Demo_Arduino/library/lvgl/examples/widgets/dropdown/index.rst

@@ -0,0 +1,20 @@
+
+Simple Drop down list
+""""""""""""""""""""""
+
+.. lv_example:: widgets/dropdown/lv_example_dropdown_1
+  :language: c
+
+Drop down in four directions
+""""""""""""""""""""""""""""
+
+.. lv_example:: widgets/dropdown/lv_example_dropdown_2
+  :language: c
+
+
+Menu
+""""""""""""
+
+.. lv_example:: widgets/dropdown/lv_example_dropdown_3
+  :language: c
+