newbie: sandbox in ~/public_html

[email protected] Tue, 16 Sep 2014 01:55:56 -0700 (PDT)
Newsgroups gmane.comp.version-control.cvs.general
Message-ID <[email protected]>
I am newbie.
I installed CVS in elementaryOS and I created repository in /var/lib/cvsroot with project rozgloszenia in folder ~robert/public_html. 
What to do to have sandbox in ~robert/public_html? I would like to use this folder.