Add doc aliases for bind, connect, and send_to functions. #1613

Job	Run time
Check Cross-Compilation (stable)	1m 57s
Check Cross-Compilation on Rust nightly on Windows (nightly)	2m 29s
Check Cross-Compilation on Rust nightly (nightly)	3m 45s
Check Cross-Compilation (beta)	4m 26s
Check Cross-Compilation on Windows (stable)	2m 0s
Check Cross-Compilation on Windows (beta)	2m 13s
Rustfmt	18s
Fuzz Targets	1m 10s
Test (stable)	54s
Test linux-raw support (ubuntu)	44s
Test (windows-latest)	2m 48s
Test (msrv)	4m 19s
Test on Musl (ubuntu)	1m 37s
Test linux-raw support (ubuntu-20.04)	44s
Test (windows-2019)	2m 45s
Test (macos-latest)	1m 30s
Test with Rust nightly (ubuntu)	54s
Test (macos-11)	1m 16s
Test with Rust nightly (windows)	2m 58s
Test (beta)	42s
Test (ubuntu-20.04)	54s
Test (aarch64-ubuntu)	3m 38s
	44m 1s

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