update the sfs_barplot auto title

sfs_tools.py

     else:
          sfs_val.append(list(sfs.values())[n-1])
     #build the plot
-    title = title+" [folded="+str(folded)+"]"
+    title = title+" [folded="+str(folded)+"]"+" [transformed="+str(transformed)+"]"
     if ylab:
         plt.ylabel(ylab)
     if xlab: