Doc: NR more examples to Repeats for beat slashes (issue4273125)

[n . puttock]

Hi James,

Thanks for doing this.  It LGTM (but don't forget to remove the
@knownissue)

Just two suggestions for you: a changes.itely entry is probably a good
idea, and the @seealso for the Internals Reference needs the following
items added:

DoublePercentEvent
DoubleRepeatSlash
Double_percent_repeat_engraver
RepeatSlashEvent
Slash_repeat_engraver

Cheers,
Neil


http://codereview.appspot.com/4273125/diff/1/Documentation/notation/repeats.itely
File Documentation/notation/repeats.itely (right):

http://codereview.appspot.com/4273125/diff/1/Documentation/notation/repeats.itely#newcode583
Documentation/notation/repeats.itely:583: \repeat percent 5 { c32 d e f}
f }

http://codereview.appspot.com/4273125/diff/1/Documentation/notation/repeats.itely#newcode584
Documentation/notation/repeats.itely:584: \repeat percent 4 { c16 d e f}
f }

http://codereview.appspot.com/4273125/