Improve code template in README.md (#140)

README.md

@@ -27,11 +27,7 @@ require 'benchmark/ips'
 Benchmark.ips do |x|
  # Configure the number of seconds used during
  # the warmup phase (default 2) and calculation phase (default 5)
- x.config(:time => 5, :warmup => 2)
-
- # These parameters can also be configured this way
- x.time = 5
- x.warmup = 2
+ x.config(warmup: 2, time: 5)
 
  # Typical mode, runs the block as many times as it can
  x.report("addition") { 1 + 2 }
@@ -43,8 +39,9 @@ Benchmark.ips do |x|
  x.report("addition2") do |times|
  i = 0
  while i < times
- 1 + 2
  i += 1
+
+ 1 + 2
  end
  end