corrected hotkey in bas-search doc

doc/bas-search.md

@@ -1,5 +1,5 @@
 #### Feaures:
- - Press `Ctrl` + `Alt` + `F` to open the search box/menu. Use `↑` and `↓` to navigate. And press `Enter` to select.
+ - Press `Ctrl` + `Shift` + `F` to open the search box/menu. Use `↑` and `↓` to navigate. And press `Enter` to select.
  - For group search, use the prefix `g:` followed by the group name (e.g., `g:groupname`)
  - In the search result pages, use `↑` and `↓` to navigate through the results. And press `Enter` to open the selected result.
  - Press `Ctrl` + `←` / `→` to navigate to the next/previous tab.