Update README.md for 1.18 #10190

Job	Run time
build_test_headless_alpine	12m 2s
build-uwp	8m 17s
build-windows (x64)	8m 45s
build (ubuntu-latest, test, clang, clang++, ./b.sh --headless --unittest, clang-normal)	3m 21s
build-windows (ARM64)	8m 51s
build (ubuntu-latest, gcc, g++, ./b.sh --headless --unittest, gcc-normal)	2m 8s
build (ubuntu-latest, android, clang, clang++, cd android && ./ab.sh -j2 APP_ABI=arm64-v8a UNITTE...	8m 57s
build (ubuntu-latest, android, clang, clang++, cd android && ./ab.sh -j2 APP_ABI=armeabi-v7a UNIT...	6m 2s
build (ubuntu-latest, android, clang, clang++, cd android && ./ab.sh -j2 APP_ABI=x86_64 UNITTEST=...	8m 53s
build (ubuntu-latest, android, clang, clang++, cd android && ./ab.sh -j2 APP_ABI=arm64-v8a OPENXR...	7m 59s
build (ubuntu-latest, android, clang, clang++, ./b.sh --libretro_android ppsspp_libretro, android...	4m 20s
build (ubuntu-latest, qt, gcc, g++, ./b.sh --qt, qt)	2m 54s
build (ubuntu-latest, libretro, gcc, g++, make -C libretro -f Makefile -j2, gcc-libretro)	1m 30s
build (ubuntu-latest, libretro, clang, clang++, make -C libretro -f Makefile -j2, clang-libretro)	2m 14s
build (macos-latest, test, clang, clang++, ./b.sh --headless --unittest --fat --no-png --no-sdl2,...	8m 0s
build (macos-latest, ios, clang, clang++, ./b.sh --ios, ios)	3m 47s
test-windows	40s
test (ubuntu-latest)	50s
test (macos-latest)	38s
	1h 40m 8s

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