minor corrections in the readme file

plugins/timer/README.md

@@ -8,11 +8,10 @@ Sample session:
 
     me@here:~$ sleep 1                                         /1.0s
     me@here:~$ sleep 73                                     /1m13.0s
-    me@here:~$ TIMER_FORMAT='[%d]'; TIMER_PRECISION=2         [0.00s]
+    me@here:~$ TIMER_FORMAT='[%d]'; TIMER_PRECISION=2        [0.00s]
     me@here:~$ head -c50 < /dev/urandom | hexdump
     0000000 b2 16 20 f0 29 1f 61 2d 8a 29 20 8c 8c 39 5a ab
     0000010 21 47 0e f9 ee a4 76 46 71 9e 4f 6b a4 c4 51 cb
     0000020 f9 1f 7e b9 6f 2c ae dd cf 40 6d 64 a8 fb d3 db
     0000030 09 37
     0000032                                                  [0.02s]
-