Add --freeze-left=N option to keep the leftmost N fields visible

man/man1/fzf.1

@@ -629,6 +629,9 @@ Render empty lines between each item
 The given string will be repeated to draw a horizontal line on each gap
 (default: '┈' or '\-' depending on \fB\-\-no\-unicode\fR).
 .TP
+.BI "\-\-freeze\-left=" "N"
+Number of fields to freeze on the left.
+.TP
 .B "\-\-keep\-right"
 Keep the right end of the line visible when it's too long. Effective only when
 the query string is empty.