Adding documentation for omjournal.rst
Adding documentation for omjournal.rst

janmejay/rsyslog-doc,sematext/rsyslog-doc,janmejay/rsyslog-doc,qha/rsyslog-doc,sematext/rsyslog-doc,sematext/rsyslog-doc,qha/rsyslog-doc,janmejay/rsyslog-doc,janmejay/rsyslog-doc,sematext/rsyslog-doc,qha/rsyslog-doc,qha/rsyslog-doc