docs(quinn): Tweak Connecting docs #5185

Job	Run time
test on netbsd	4m 57s
test on solaris	6h 0m 0s
features (ubuntu-latest)	1h 23m 24s
audit	23s
lint	1m 2s
features (macos-latest)	28m 23s
msrv	1m 2s
features (windows-latest)	51m 49s
test (ubuntu-latest, stable)	1m 28s
test-android (x86_64-linux-android, x86_64, 26)	3m 49s
test-aws-lc-rs	1m 54s
test on freebsd	4m 1s
test-android (i686-linux-android, x86, 26)	2m 52s
test (ubuntu-latest, beta)	1m 18s
test on illumos	6m 35s
test (macos-latest, stable)	1m 11s
test wasm32-unknown-unknown	52s
test (windows-latest, stable)	4m 36s
	9h 19m 36s

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