docs: improve the quick start

[YuanYuYuan]

Closes #82

[github-actions]

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[ngres]

cargo install zenoh

Returns

error: there is nothing to install in `zenoh v1.7.2`, because it has no binaries
`cargo install` is only for installing programs, and can't be used with libraries.
To use a library crate, add it as a dependency to a Cargo project with `cargo add`.

It does not seem to be a viable install option.

[YuanYuYuan]

cargo install zenoh

Returns

error: there is nothing to install in `zenoh v1.7.2`, because it has no binaries
`cargo install` is only for installing programs, and can't be used with libraries.
To use a library crate, add it as a dependency to a Cargo project with `cargo add`.

It does not seem to be a viable install option.

Good catch! It should be cargo install zenohd 😅

[YuanYuYuan]

Superseded by #93