 small bug correction and changes in documentation
 small bug correction and changes in documentation

anitzkin/relex,leungmanhin/relex,anitzkin/relex,opencog/relex,ainishdave/relex,virneo/relex,leungmanhin/relex,virneo/relex,williampma/relex,linas/relex,virneo/relex,williampma/relex,ainishdave/relex,ainishdave/relex,anitzkin/relex,ainishdave/relex,leungmanhin/relex,anitzkin/relex,rodsol/relex,anitzkin/relex,AmeBel/relex,linas/relex,opencog/relex,williampma/relex,AmeBel/relex,rodsol/relex,virneo/relex,AmeBel/relex,opencog/relex,linas/relex,rodsol/relex,williampma/relex,rodsol/relex