Extended cargo installation instructions

[JHenneberg]

extended cargo installation instructions in README.md by mentioning how to install a specific tag

[JHenneberg]

makes sense.
@laurmaedje you want the version completly stripped or is this fine with you in an example, which actually do not really need to be uptodate, although it might trigger some people to just copy and paste this command because they expect it to be the latest version?

- If you have a [Rust][rust] toolchain install the latest development version. Note that this will be a "nightly" version that may be broken or not yet properly documented with:

  `cargo install --git https://github.com/typst/typst --locked typst-cli`

  A specific version can be installed by providing the option `--tag`.

[Coekjan]

Or we can run a script to query the latest tag (but it's too long to input conveniently):

URL=https://github.com/typst/typst
TAG="$(git -c 'versionsort.suffix=-' ls-remote --refs --tags --sort=version:refname ${URL}.git | \
  grep -Eo 'v[[:digit:]]+\.[[:digit:]]+\.[[:digit:]]+' | \
  tail -n 1)"
cargo install --git "$URL" --locked typst-cli --tag "$TAG"

[Coekjan]

Oh, why not just install from crate.io please. I just found typst-cli has already been published to crate.io, so installation from the registry shall be of the latest tag!

[laurmaedje]

Yeah, these instruction precede the crates.io release ... but some people might still want the latest dev version.

[bluebear94]

Suggested change

	Note that this will be a "nightly" version that may be broken or not yet properly documented
	Note that this is a "nightly" version that may be broken or not yet properly documented.

[laurmaedje]

I feel like now the Rust section is a bit long with paragraphs and block-level raw text. How about this?

...

- If you have a [Rust][rust] toolchain installed, you can install
  - the latest released Typst version with
    `cargo install --locked typst-cli`
  - a development version with
    `cargo install --git https://github.com/typst/typst --locked typst-cli`

- Nix users can
  - use the `typst` package with `nix-shell -p typst`
  - build and run a development version with
    `nix run github:typst/typst -- --version`.

...

[JHenneberg]

I feel like now the Rust section is a bit long with paragraphs and block-level raw text. How about this?

...

- If you have a [Rust][rust] toolchain installed, you can install
  - the latest released Typst version with
    `cargo install --locked typst-cli`
  - a development version with
    `cargo install --git https://github.com/typst/typst --locked typst-cli`

- Nix users can
  - use the `typst` package with `nix-shell -p typst`
  - build and run a development version with
    `nix run github:typst/typst -- --version`.

...

The textual changes I totally agree on. I just prefer to be able to use the copy feature of block code. I am lazy :P

[laurmaedje]

Thanks!