fzf as dmenu replacement - better cleanup after run

Examples.md

@@ -1426,11 +1426,10 @@ chmod 600 $input $output
 st -c fzfmenu -n fzfmenu -e sh -c "cat $input | fzf | tee $output" & disown
 
 # handle ctrl+c outside child terminal window
-trap "kill $! 2>/dev/null" EXIT
+trap "kill $! 2>/dev/null; rm -f $input $output" EXIT
 
 cat > $input
 cat $output
-rm -f $input $output
 ```
 
 Don't forget to add a float/center rule for `fzfmenu` class/name to your wm's config.