block directives should be followed by a newline

Will need to revise this with our guidelins (indent, semantic linefeeds)
later.
Merge pull request #48 from amatosg/patch-1

Update keyboard_shortcuts_osx.rst

cmd + X cuts the line, it doesn't delete it.
Merge pull request #114 from guillermooo/edit-symbols

Edit symbols
minor edits
Merge branch 'edit-symbols' into sublime-text-3
rearrange info
indent code
elaborate a bit on symbol transformations