update readme with ushuffle comparison

Author: bjmt

README

@@ -234,50 +234,50 @@ A random DNA string with 100,000 characters was used as input.
 
  k         Program    Peak memory (kB)    Elapsed time (s)
 --    ------------    ----------------    ----------------
- 1        uShuffle                1036                0.00
-          shuffler                1428                0.01
+ 1    uShuffle                    1036                0.00
+      shuffler                    1428                0.01
 
- 2        uShuffle                3796                0.00
+ 2    uShuffle                    3796                0.00
       shuffler (e)                3012                0.01
       shuffler (l)                1760                0.01
       shuffler (m)                2100                0.04
 
- 3        uShuffle                3796                0.01
+ 3    uShuffle                    3796                0.01
       shuffler (e)                3036                0.02
       shuffler (l)                1556                0.00
       shuffler (m)                2216                0.04
 
- 4        uShuffle                3780                0.01
+ 4    uShuffle                    3780                0.01
       shuffler (e)                2788                0.02
       shuffler (l)                1520                0.00
       shuffler (m)                2268                0.06
 
- 5        uShuffle                3792                0.01
+ 5    uShuffle                    3792                0.01
       shuffler (e)                2992                0.02
       shuffler (l)                1644                0.01
       shuffler (m)                2188                0.10
 
- 6        uShuffle                3820                0.01
+ 6    uShuffle                    3820                0.01
       shuffler (e)                3396                0.03
       shuffler (l)                1488                0.00
       shuffler (m)                2328                0.28
 
- 7        uShuffle                3908                0.02
+ 7    uShuffle                    3908                0.02
       shuffler (e)                4768                0.04
       shuffler (l)                1592                0.00
       shuffler (m)                3508                1.08
 
- 8        uShuffle                4296                0.05
+ 8    uShuffle                    4296                0.05
       shuffler (e)                8876                0.06
       shuffler (l)                1612                0.00
       shuffler (m)                7224                4.20
 
- 9        uShuffle                5384                0.08
+ 9    uShuffle                    5384                0.08
       shuffler (e)               27436                0.16
       shuffler (l)                1468                0.00
       shuffler (m)               23528               13.11
 
-10        uShuffle                6380                0.10
+10    uShuffle                    6380                0.10
       shuffler (e)              102148                0.43
       shuffler (l)                1608                0.00
       shuffler (m)               88148             2:12.22