Fix code background in wiki pages
Fix code background in wiki pages

Fix needed after commit c444e40c016c0faaec604335093b19661b3585b7

dawnbreak/hubzilla,sasiflo/hubzilla,anaqreon/hubzilla,redmatrix/hubzilla,mrjive/hubzilla,redmatrix/hubzilla,mrjive/hubzilla,mrjive/hubzilla,redmatrix/hubzilla,dawnbreak/hubzilla,anaqreon/hubzilla,sasiflo/hubzilla,sasiflo/hubzilla,redmatrix/hubzilla,redmatrix/hubzilla,anaqreon/hubzilla,anaqreon/hubzilla,anaqreon/hubzilla,dawnbreak/hubzilla,mrjive/hubzilla,dawnbreak/hubzilla,mrjive/hubzilla,sasiflo/hubzilla,sasiflo/hubzilla,dawnbreak/hubzilla,dawnbreak/hubzilla,mrjive/hubzilla,sasiflo/hubzilla,redmatrix/hubzilla,anaqreon/hubzilla