bug in hello world source on gtkmm.org

["Szymon Fiedler" <kenewh gmail com>]

Hello,

There is a small bug in hello world source on gtkmm.org site (http://www.gtkmm.org/docs/gtkmm-2.4/docs/tutorial/html/sec-helloworld.html)
In main.cpp there is:
> #include "helloworld.h"
Should be:
> #include "helloworld.cc"
because there is no link between main.cc and helloworld.cc and there are some errors during the compilation.

Best regards,
Simon Fiedler