[TYPO3-english] A note on frontend editing tutorial

[Tomasz Melcer]

Hello,

I just managed to get frontend editing working. I used a tutorial I
found googling [1].

There's one missing information there: `feedit` extension has to be
installed and loaded--it wasn't in my TYPO3 installation (I started with
an introduction package). It wasn't obvious to me, so someone could add
it to that document.

 [1] http://typo3.org/1215.0.html

Tomasz Melcer