Update documentation for 32x32 canvas support.

Author: ibara

README.md

@@ -1,7 +1,12 @@
 sprite
 ======
 Sprite is an ncurses-based sprite editor.
-You can use it to make and share pixel art.
+You can use it to create and share pixel art.
+
+By default, sprite sets up a 16x16 pixel canvas.
+If you'd like the larger 32x32 pixel canvas,
+start sprite with the -e flag.
+It is the responsibility of the user to ensure the terminal is properly sized.
 
 Requirements
 ------------
@@ -18,7 +23,3 @@ License
 -------
 ISC License.
 See `LICENSE` for details.
-
-Todo
-----
-* 32x32 sprite canvas if the screen is big enough.

sprite.1

@@ -23,19 +23,25 @@
 .Nd ncurses-based sprite editor
 .Sh SYNOPSIS
 .Nm
+.Op Fl e
 .Op Ar file
 .Sh DESCRIPTION
 .Nm
 is an ncurses-based sprite editor.
-You can use it to make and share pixel art.
+You can use it to create and share pixel art.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl e
+Use an extended canvas of 32x32 pixels instead of the default 16x16 pixels.
+.El
 .Sh AUTHORS
 .Nm
 was written by
 .An Brian Callahan Aq Mt bcallah@openbsd.org .
 .Sh CAVEATS
-.Nm
-only supports a 16x16 canvas.
-Support for a 32x32 canvas will be in a future version.
+It is the responsibility of the user to ensure the terminal is properly
+sized.
 .Pp
 Console aspect ratio may not match user expectations.
 PNG export creates standard square pixels.