Merge pull request #1849 from multiversx/readme-install-pretty-printer #852

Job	Run time
Contracts (nightly) / Wasm tests	8m 35s
Contracts (nightly) / Clippy linter check	1m 20s
Contracts (nightly) / Rust tests	3m 14s
Contracts (nightly) / Test Coverage	5m 5s
	18m 14s

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