Minor update
C-c C-b is to execute file, not C-c C-z
Merge pull request #25 from joyfulmantis/master

C-c C-b is to execute file, not C-c C-z
Fix typo in Emacs for Proglang
Add virtual directory and helm-projectile-grep/ack/ag

Also change "Back" to "Back to Table of Contents" to draw more
attention.
Raise Bookmark section up one level
Update contents for helm-projectile-grep/ack
Fix some typos
Merge pull request #26 from binarin/master

Fix some typos
Fix helm typos in HTML file
Remove helm-quick-update

Since it will make Helm buffer flashing when typing.
Fix a typo in Part 2
Minor clarification for helm-show-kill-ring