* Clarify the webhook's definiton in webhooks.md
Here is necessary to clarify the real definition of webhook which is a request with POST action to a specified url ( when this happen, the url going to return the result, in this context, is when we do 'docker push' to submit a image to registry, it fires the automatically build
* Updated after suggest
I updated the right sentence, I feel it more clear now. thank you :)
* Remove duplicate wording
* Reword lots of instances of 'will'
* Reword lots of instances of won't
* Reword lots of instances of we'll
* Eradicate you'll
* Eradicate 'be able to' type of phrases
* Eradicate 'unable to' type of phrases
* Eradicate 'has / have to' type of phrases
* Eradicate 'note that' type of phrases
* Eradicate 'in order to' type of phrases
* Redirect to official Chef and Puppet docs
* Eradicate gratuitous 'please'
* Reduce use of e.g.
* Reduce use of i.e.
* Reduce use of N.B.
* Get rid of 'sexagesimal' and correct some errors