Update README.md: Add x-cmd method to install bat #3814

Job	Run time
Extract crate metadata	3s
Ensure 'cargo fmt' has been run	11s
License checks	1m 39s
Run tests with updated syntaxes and themes	4m 54s
cargo audit	7s
Documentation	44s
Run tests with system wide configuration	2m 25s
Minimum supported rust version	1m 27s
aarch64-unknown-linux-musl (ubuntu-20.04)	4m 2s
aarch64-unknown-linux-gnu (ubuntu-20.04)	3m 47s
arm-unknown-linux-gnueabihf (ubuntu-20.04)	4m 5s
arm-unknown-linux-musleabihf (ubuntu-20.04)	3m 56s
i686-pc-windows-msvc (windows-2019)	7m 46s
i686-unknown-linux-gnu (ubuntu-20.04)	3m 41s
i686-unknown-linux-musl (ubuntu-20.04)	3m 41s
x86_64-apple-darwin (macos-12)	4m 31s
aarch64-apple-darwin (macos-14)	3m 15s
x86_64-pc-windows-gnu (windows-2019)	8m 27s
x86_64-pc-windows-msvc (windows-2019)	8m 11s
x86_64-unknown-linux-gnu (ubuntu-20.04)	4m 1s
x86_64-unknown-linux-musl (ubuntu-20.04)	3m 47s
all-jobs	1s
Publish to Winget	0s
	1h 14m 41s

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