Add installation docs #187

Job	Run time
🍎 Build SPAdes for macOS (macos-13, x86_64)	26m 13s
🍎 Build SPAdes for macOS (macos-14, arm64)	7m 13s
🐧 Build SPAdes for Linux	6h 0m 3s
SPAdes unittests (macos-13, x86_64)	1m 12s
🚬 E. coli 1k smoke checks (macos-14, arm64)	42s
SPAdes unittests (macos-14, arm64)	39s
🚬 E. coli 1k smoke checks (macos-13, x86_64)	2m 14s
SPAdes unittests	0s
🚬 E. coli 1k smoke checks	0s
🚬 E. coli 1k smoke checks (MPI)	0s
🐧 Build SPAdes for Linux	8m 19s
🍎 Build SPAdes for macOS (macos-13, x86_64)	26m 13s
🍎 Build SPAdes for macOS (macos-14, arm64)	7m 13s
SPAdes unittests (macos-14, arm64)	39s
🚬 E. coli 1k smoke checks (macos-14, arm64)	42s
🚬 E. coli 1k smoke checks (macos-13, x86_64)	2m 14s
SPAdes unittests (macos-13, x86_64)	1m 12s
SPAdes unittests	26s
🚬 E. coli 1k smoke checks	1m 14s
🚬 E. coli 1k smoke checks (MPI)	1m 34s
	7h 28m 2s

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