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/btn/index.rst

@@ -0,0 +1,20 @@
+
+Simple Buttons
+""""""""""""""""
+
+.. lv_example:: widgets/btn/lv_example_btn_1
+  :language: c
+
+
+Styling buttons
+""""""""""""""""
+
+.. lv_example:: widgets/btn/lv_example_btn_2
+  :language: c
+
+Gummy button
+""""""""""""""""
+
+.. lv_example:: widgets/btn/lv_example_btn_3
+  :language: c
+