Merge pull request #11 from lpil/master

Fix some typos in tutorial intro
tutorial: SE-type
Merge branch 'master' of ssh://github.com/anton-k/csound-expression
tutorial: SE-type
tutorial: sound file playback
tut and impl: sound procedures, writing files to disk
tut: scores
tut: mk appendix
fix appendix
appendix links
csd intro code highlight
tut: code highlight
tut: code highlight
upd readme
upd heading pages
version bump
changelog
guide: typos
guide: ranges
guide: ranges