Updated Usage (markdown)

Usage.md

@@ -156,10 +156,10 @@ optional args:
  -d      detail mode
  -D      dirs in context color
  -e      text in $VISUAL/$EDITOR/vi
- -E      use EDITOR for undetached edits
+ -E      internal edits in EDITOR
  -f      use readline history file
  -F      show fortune
- -g      regex filters [default: string]
+ -g      regex filters
  -H      show hidden files
  -J      no auto-proceed on select
  -K      detect key collision
@@ -179,7 +179,7 @@ optional args:
  -U      show user and group
  -V      show version
  -w      place HW cursor on hovered
- -x      notis, sel to clipboard, xterm title
+ -x      notis, selection sync, xterm title
  -h      show help
 ```