Add IRB Has Built-In Benchmarking With Ruby 3 as a ruby til

ruby/irb-has-built-in-benchmarking-with-ruby-3.md

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+# IRB Has Built-In Benchmarking With Ruby 3
+
+As of Ruby 3.0.0, `irb`—Ruby's interactive console—comes with a `measure`
+method. This can be used to turn the processing time feature on and off. With
+it on, you can do rough benchmarking of how long different process take.
+
+Ruby `measure` or `measure(true)` to turn on the timing feature.
+
+```ruby
+> measure
+TIME is added.
+=> nil
+```
+
+Once it is enabled, any command you run will including processing time details:
+
+```ruby
+> array = [1,2,3,4]
+processing time: 0.000033s
+=> [1, 2, 3, 4]
+> array.zip(array).map { |a,b| a * b ** (a * b) }
+processing time: 0.000057s
+=> [1, 32, 59049, 17179869184]
+```
+
+[source](https://jemma.dev/blog/irb-measure)