docs: add highlights to roadmap (#37)

I think that it would be really nice to have the possibility to get highlights for matched items.
With them we can explain sorting intuitively to end-user e.g.: using bold chars, etc.

other/ROADMAP.md

@@ -2,7 +2,7 @@
 
 ## Want to do
 
-- ideas?
+- Implement possibility to get highlights for matched items. Something like https://github.com/moroshko/autosuggest-highlight#match
 
 ## Might do