titlepic: update .gitignore
titlepic: update .gitignore

Signed-off-by: RjY <83893d85028dba5ed7fb8142c08f77f1480bf584@users.sourceforge.net>
Signed-off-by: Mike Swanson <517655fde76fa2f07143b6c6f1774e4fae45930a@gmail.com>

jmtd/freedoom,CWolfRU/freedoom,jmtd/freedoom,jmtd/freedoom,CWolfRU/freedoom