Add Body tag to see the web debug toolbar

[rmed19]

Add body tag on the response content to see the web debug toolbar.

Q	A
Doc fix?	yes
New docs?	no
Applies to	2.3+
Fixed tickets	#5616

[javiereguiluz]

At first I was divided about this change. It "complicates" the code for no apparent reason (the user will have a real page instead of using the Response() directly).

However, later in the same chapter we tell the reader:

If you refresh now, you'll be logged in! The web debug toolbar even tells you who
you are and what roles you have:

Since the toolbar doesn't show up if you don't have a closing </body> tag, I think this change is the right thing to do. So now I'm 👍

[xabbuh]

👍

[xabbuh]

Thank you Mohammed.

[rmed19]

Hi @xabbuh,
this change should be add to all symfony 2.* documentation not only the 2.3.
Should I create a new pull request?

[javiereguiluz]

@rmed19 don't worry about that. Changes are always merged in the oldest branch and then, from time to time, doc managers merge old branches into newer ones. So in a few hours/days, this change will be merged into 2.7, 2.8 and master.

[xabbuh]

@rmed19 I just merged branches up so your changes are now also available in 2.7, 2.8 and master and they will be visible soon when the documentation is rebuilt. :)