Russian tranlation of coffeescript.html.markdown
Fixed filename
Nickname moved to  `translators` section
Update coffeescript-ru.html.markdown
Update coffeescript-ru.html.markdown
Fix a comment that indicates what "say @array" will print.

We assigned 6 to @array[1] a few lines before, so say @array will print
"a 6 b", not "a 2 b".