[Devel] Typos in online documentation.

[Eric Poulsen]

I've discovered a minor typo on this page of the documentation:

http://freetype.sourceforge.net/freetype2/docs/tutorial/step2.html

There are several code examples that have this bit of HTML _source_:

FT_Get_Kerning( face, previous, glyph_index, ft_kerning_mode_default,
&delta );

Notice the &delta part.  Since this is the HTML _source_, it renders as
a strange character in my browser because it is an HTML entity.  In
fact, it looks like most of the code examples aren't properly escaped
for HTML.  The above source should be: 

FT_Get_Kerning( face, previous, glyph_index, ft_kerning_mode_default,
&delta );