Improve the semantics of the manual

Don't treat the slash delimiter as part of the key binding.

pick.1

@@ -52,18 +52,18 @@ Disable the use of the alternate screen terminal feature.
 Exit with a erroneous status without outputting the selected choice.
 .It Ic Ctrl-L
 Redraw interface with respect to the current size of the terminal.
-.It Ic Up/Down | Ctrl-P/Ctrl-N
+.It Ic Up Ns / Ns Ic Down | Ic Ctrl-P Ns / Ns Ic Ctrl-N
 Select between choices matching the current search query.
-.It Ic Page-Down/Page-Up | Ctrl-V/Alt-V | Alt-Space
+.It Ic Page-Down Ns / Ns Ic Page-Up | Ic Ctrl-V Ns / Ns Ic Alt-V | Ic Alt-Space
 Move the selection to the choice located one page down/up from the currently
 selected choice.
-.It Ic Home/End | Alt-</Alt->
+.It Ic Home Ns / Ns Ic End | Ic Alt-< Ns / Ns Ic Alt->
 Move the selection to the first/last choice matching the current search query.
 .It Ic Enter
 Output the currently selected choice and exit.
 .It Ic Alt-Enter
 Output the current input query and exit.
-.It Ic Left/Right | Ctrl-B/Ctrl-F
+.It Ic Left Ns / Ns Ic Right | Ic Ctrl-B Ns / Ns Ic Ctrl-F
 Move the cursor left and right in the search query input field.
 .It Ic Ctrl-A
 Move the cursor to the beginning of the line in the search query input field.