update C snipplets

code/C/Web/webui/minimal.c

@@ -0,0 +1,24 @@
+#include <stdio.h>
+#include "webui.h"
+
+void fn_one(webui_event_t *e) {
+  const char *str = webui_get_string(e);
+  printf("Data from JavaScript: %s\n", str);
+
+  webui_return_string(e, "Message from C");
+}
+
+void fn_two(webui_event_t *e) { puts("Click!"); }
+
+int main() {
+  size_t my_window = webui_new_window();
+
+  webui_bind(my_window, "MyID", fn_one);
+  webui_bind(my_window, "clck", fn_two);
+
+  webui_show(my_window, "index.html");
+  webui_run(my_window, "alert('Fast!');");
+  webui_wait();
+
+  return 0;
+}