Documentation edits.

include/freetype/ftlcdfil.h

@@ -83,7 +83,7 @@ FT_BEGIN_HEADER
    *   Harmony LCD rendering is suitable to panels with any regular subpixel
    *   structure, not just monitors with 3 color striped subpixels, as long
    *   as the color subpixels have fixed positions relative to the pixel
-   *   center.  In this case, each color channel is then rendered separately
+   *   center.  In this case, each color channel can be rendered separately
    *   after shifting the outline opposite to the subpixel shift so that the
    *   coverage maps are aligned.  This method is immune to color fringes
    *   because the shifts do not change integral coverage.
@@ -100,9 +100,9 @@ FT_BEGIN_HEADER
    *   clockwise.  Harmony with default LCD geometry is equivalent to
    *   ClearType with light filter.
    *
-   *   As a result of ClearType filtering or Harmony rendering, the
-   *   dimensions of LCD bitmaps can be either wider or taller than the
-   *   dimensions of the corresponding outline with regard to the pixel grid.
+   *   As a result of ClearType filtering or Harmony shifts, the resulting
+   *   dimensions of LCD bitmaps can be slightly wider or taller than the
+   *   dimensions the original outline with regard to the pixel grid.
    *   For example, for @FT_RENDER_MODE_LCD, the filter adds 2~subpixels to
    *   the left, and 2~subpixels to the right.  The bitmap offset values are
    *   adjusted accordingly, so clients shouldn't need to modify their layout