cheet_sheet: update

Signed-off-by: Ralf Zerres <ralf.zerres@networkx.de>

advotracker_client/examples/cheet_sheet.rs

@@ -66,7 +66,7 @@
 
 // API Update: access properties of widgets in states
 
-// Old style
+// Old style (associated functions)
 // let text = *button(&mut ctx.widget()).text();
 // let text = Button::get(&mut ctx.widget()).text();
 // let text = *button(&mut ctx.widget()).clone_text();
@@ -76,7 +76,7 @@
 // button(&mut ctx.widget()).set_text(String16::from("test"));
 // Button::get(&mut ctx.widget()).set_text(String16::from("test"));
 
-// Current style
+// Current style (trait functions)
 // let text = Button::text_clone(&ctx.widget());
 // Button::text_mut(&mut ctx.widget()).push_str("test");
 // Button::text_set(&mut ctx.widget(), String16::from("test"));