Usage 1.2: svg-woff option badly described

[Federico Bruni]

Hi all

I'm updating the Usage manual and I find this description not clear 
enough (disclaimer: I don't know anything about this font stuff):

"""
@item @code{svg-woff}
@tab @code{#f}
@tab Use woff font files in SVG backend.
By using the woff file properly,
you do not have to install the fonts which are used by SVG files
to SVG viewer environment.
However, LilyPond does not contain woff font file for text.
woff font file is required.
"""

What means "using the woff file properly"?
And the last sentence is too concise. woff font file is required in 
which case?

I think it should be rephrased. Let's see if I guess it right:

LilyPond woff files contain only music glyphs and not text.
Using the woff file properly means using only music glyphs and not 
text. (???)
If your input file contains text and you want to use this option, you 
must install a woff font file in the system (BTW, "system" might be 
easier to grasp than "SVG viewer environment").

If my assumptions are correct (which I totally doubt), I would rewrite 
it as:

"""
LilyPond does not contain woff font file for text (only for notation 
glyphs). This implies that if your input file contains text and you 
want to use this option, you must install a woff font file in the 
system.
"""

Thanks for clarifying this
Federico