Improve documentation of `FT_LOAD_MONOCHROME'.
diff --git a/include/freetype/freetype.h b/include/freetype/freetype.h
index 877f615..3bde8a8 100644
--- a/include/freetype/freetype.h
+++ b/include/freetype/freetype.h
@@ -2346,7 +2346,8 @@ FT_BEGIN_HEADER
*
* FT_LOAD_MONOCHROME ::
* This flag is used with @FT_LOAD_RENDER to indicate that you want to
- * render an outline glyph to a 1-bit monochrome bitmap glyph.
+ * render an outline glyph to a 1-bit monochrome bitmap glyph, with
+ * 8 pixels packed into each byte of the bitmap data.
*
* Note that this has no effect on the hinting algorithm used. You
* should use @FT_LOAD_TARGET_MONO instead so that the