Fix examples of InitStep in plugin documentation

InitStep has a new postRun() method which must be implemented.

Modifications of the All-Projects project.config have to be done in
the postRun() method since during the run() method the site does not
exist yet if a new site is initialized.

Change-Id: I186817f76b328a344d1a04f982d5bc2973688c25
Signed-off-by: Edwin Kempin <edwin.kempin@sap.com>
1 file changed