Adding Prerequisites to README (#405) #372

Job	Run time
Formatting Check	21s
Build and test (windows-latest, openssl_1.1)	7m 33s
Build and test (windows-latest, openssl_3)	11m 2s
Build and test (windows-latest, boringssl)	5m 27s
Build and test (ubuntu-latest, openssl_1.1)	2m 32s
Build and test (ubuntu-latest, openssl_3)	4m 3s
Build and test (ubuntu-latest, boringssl)	2m 44s
Build and test (macos-latest, openssl_1.1)	4m 10s
Build and test (macos-latest, openssl_3)	7m 35s
Build and test (macos-latest, boringssl)	8m 29s
Interop test	3m 39s
Build with clang-tidy (openssl_1.1)	9m 37s
Build with clang-tidy (openssl_3)	12m 6s
Build with clang-tidy (boringssl)	14m 55s
	1h 34m 13s

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