Add -e flag to explain what the previous smiley face means. This

requires us to also know what the previous return signal is, so
if XD is given a return code, it passes it through when finishing
execution.

XD.1

@@ -1,4 +1,4 @@
-.Dd December 19, 2024
+.Dd Febuary 18, 2025
 .Dt XD 1
 .Sh NAME
 .Nm XD
@@ -6,7 +6,9 @@
 .Os
 .Sh SYNOPSIS
 .Nm
-.Op Fl v|number
+.Op Fl v
+.Op Fl e
+.Op number
 .Sh DESCRIPTION
 .Nm
 Displays information using a smiley face like so: :)
@@ -40,3 +42,37 @@ c;l.
  /;command not found
  (;previous signal is failure
 .TE
+.Sh OPTIONS
+.Ss -v
+Print version information to stdout and exit.
+.Ss -e
+Explain the output instead of putting a smiley face.
+
+.Sh EXAMPLES
+Running
+.Nm
+and passing in the previous return code ($?) results in a smiley face, if you
+then follow that by \fBXD -e $?\fR then you will get an explination of what the
+face is explaining.
+
+$ \fBXD $?\fR
+.br
+:)
+.br
+$ \fBXD -e $?\fR
+.br
+Not in a git repository.
+.br
+Return code of 0, no errors.
+
+$ \fBXD $?\fR
+.br
+;*O
+.br
+$ \fBXD -e $?\fR
+.br
+In a git repository.
+.br
+The're staged changes.
+.br
+Return code of 130, ctrl-c was pressed, or SIGTERM sent.