updated README formatting
updated README formatting

vonahnen/ruby-plsql-spec,jgebal/ruby-plsql-spec,rsim/ruby-plsql-spec,vonahnen/ruby-plsql-spec,jgebal/ruby-plsql-spec,jgebal/ruby-plsql-spec,vonahnen/ruby-plsql-spec,rsim/ruby-plsql-spec,rsim/ruby-plsql-spec,rsim/ruby-plsql-spec,vonahnen/ruby-plsql-spec