Few doc tweaks: #797

Job	Run time
Ruby memcheck	1m 0s
ruby-versions / Generate Ruby versions	5s
ubuntu-latest 2.7	1m 53s
ubuntu-latest 3.0	1m 21s
ubuntu-latest 3.1	2m 49s
ubuntu-latest 3.2	38s
ubuntu-latest 3.3	39s
ubuntu-latest 3.4	39s
ubuntu-latest head	2m 16s
ubuntu-latest jruby	1m 6s
ubuntu-latest jruby-head	2m 10s
macos-14 2.7	56s
macos-14 3.0	24s
macos-14 3.1	26s
macos-14 3.2	20s
macos-14 3.3	23s
macos-14 3.4	21s
macos-14 head	20s
macos-14 jruby	48s
macos-14 jruby-head	44s
windows-latest 2.7	3m 42s
windows-latest 3.0	2m 36s
windows-latest 3.1	2m 55s
windows-latest 3.2	2m 34s
windows-latest 3.3	4m 37s
windows-latest 3.4	3m 28s
windows-latest head	2m 15s
ubuntu-24.04-arm 3.4	59s
macos-13 3.4	34s
windows-latest mswin	1m 10s
ubuntu-latest jruby-9.4	1m 12s
macos-latest truffleruby-head	49s
ubuntu-latest truffleruby-head	2m 5s
	48m 14s

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