Escape ! in binding loaders section of the tutorial

[cweems]

In the tutorial, I encountered an error "event not found: css" when doing:

$ webpack ./entry.js bundle.js --module-bind "css=style!css"

It appears that the ! before css needs to be escaped in order to function properly:

$ webpack ./entry.js bundle.js --module-bind "css=style\!css"

A note reminding users to escape that might be helpful. I spend a few minutes trying to figure this one out.

[dgoguerra]

It seems to be updated in the docs repo (changed to using single quotes), just not published yet.

[sokra]

Closing because we are working on a new documentation for webpack 2