Update docstring of draft-irtf-cfrg-hash-to-curve #4089

Job	Run time
Clang Tidy	31s
Analysis (coverage, gcc, ubuntu-22.04)	20m 36s
Linux (gcc, shared)	1m 49s
Analysis (sanitizer, msvc, windows-2022, ninja)	11m 3s
Linux (gcc, amalgamation)	1m 3s
Linux (gcc, static)	1m 18s
macOS (shared, clang)	4m 12s
Analysis (sanitizer, clang, ubuntu-22.04)	8m 55s
Linux (clang, shared)	2m 4s
macOS (amalgamation, clang)	1m 51s
Analysis (sanitizer, gcc, ubuntu-22.04)	11m 24s
Analysis (valgrind, gcc, ubuntu-22.04)	14m 42s
Special (examples, gcc, ubuntu-22.04)	1m 5s
Windows (shared, x86_64, windows-2022)	4m 30s
Analysis (fuzzers, gcc, ubuntu-22.04)	4m 10s
Special (minimized, gcc, ubuntu-22.04)	37s
Windows (static, x86_64, windows-2022)	4m 3s
Analysis (lint, gcc, ubuntu-22.04)	37s
Special (bsi, gcc, ubuntu-22.04)	2m 7s
Windows (amalgamation, x86_64, windows-2022)	2m 19s
Analysis (format, gcc, ubuntu-22.04)	43s
Windows (shared, x86, windows-2022)	6m 35s
Cross (cross-i386, gcc, ubuntu-22.04)	2m 9s
Cross (cross-arm32, gcc, ubuntu-22.04)	8m 10s
Cross (cross-arm64, gcc, ubuntu-22.04)	5m 32s
Cross (cross-ppc64, gcc, ubuntu-22.04)	5m 11s
Cross (cross-riscv64, gcc, ubuntu-22.04)	5m 35s
Cross (cross-s390x, gcc, ubuntu-22.04)	9m 12s
Cross (cross-android-arm32, clang, ubuntu-22.04)	1m 23s
Cross (cross-android-arm64, clang, ubuntu-22.04)	1m 23s
Cross (static, gcc, windows-2022, make)	3m 0s
Cross (cross-ios-arm64, clang, macos-13)	8m 14s
Cross (emscripten, emcc, macos-13)	13m 16s
	2h 49m 19s

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