code: def general_stats(self):
          
  
          headers = OrderedDict()
          headers['Change_rate'] = {
              'title': 'Change rate',
              'scale': 'RdYlBu-rev',
              'min': 0,
              'format': '{:,.0f}'
          }
          headers['Ts_Tv_ratio'] = {
              'title': 'Ts/Tv',
              'description': 'Transitions / Transversions ratio',
              'format': '{:,.3f}'
          }
          headers['Number_of_variants_before_filter'] = {
              'title': 'M Variants',
              'description': 'Number of variants before filter (millions)',
              'scale': 'PuRd',
              'modify': lambda x: x / 1000000,
              'min': 0,
              'format': '{:,.2f}'
          }
          self.general_stats_addcols(self.snpeff_data, headers)
docs: Add key SnpEff stats to the general stats table