Improve README Emoji mode table #62

Job	Run time
Ruby 3.3 (windows-latest)	2m 4s
Ruby 3.3 (ubuntu-latest)	16s
Ruby 3.2 (windows-latest)	1m 10s
Ruby 3.3 (macos-latest)	10s
Ruby 3.1 (windows-latest)	1m 13s
Ruby 3.2 (ubuntu-latest)	8s
Ruby 3.0 (windows-latest)	1m 18s
Ruby 3.2 (macos-latest)	9s
Ruby 2.7 (windows-latest)	2m 44s
Ruby 3.1 (ubuntu-latest)	7s
Ruby jruby (windows-latest)	1m 42s
Ruby 3.1 (macos-latest)	12s
Ruby 3.0 (ubuntu-latest)	5s
Ruby 3.0 (macos-latest)	9s
Ruby 2.7 (ubuntu-latest)	23s
Ruby 2.7 (macos-latest)	25s
Ruby jruby (ubuntu-latest)	34s
Ruby jruby (macos-latest)	35s
Ruby truffleruby (ubuntu-latest)	18s
Ruby truffleruby (macos-latest)	17s
	13m 59s

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