update install instructions

README.md

@@ -6,13 +6,26 @@ require syntax of Luau to Roblox's require syntax, and generates a
 `default.project.json`. This allows you to create testable libraries that can
 also be used in Roblox by letting you write your libraries in pure Luau.
 
-## Installation
+# Installation
 
+## Deno
+This script can be executed without the need for installation using the `deno` cli as follows:
+```
+deno run -A https://raw.githubusercontent.com/fewkz/luau-to-rojo/main/luau-to-rojo.ts --help
+```
+You can also install it as a shell command with `deno install` like so:
+```
+deno install -A https://raw.githubusercontent.com/fewkz/luau-to-rojo/main/luau-to-rojo.ts
+```
+
+## Aftman
 You can install `luau-to-rojo` via [Aftman](https://github.com/LPGhatguy/aftman)
-by doing `aftman add fewkz/luau-to-rojo`, or download a binary directly from
-[GitHub Releases](https://github.com/fewkz/luau-to-rojo/releases)
+by doing `aftman add fewkz/luau-to-rojo`
+
+## GitHub release
+You can download a binary directly from [GitHub Releases](https://github.com/fewkz/luau-to-rojo/releases)
 
-## How to use
+# How to use
 
 To use, run `luau-to-rojo luau-project-dir rojo-project-dir`, where
 `luau-project-dir` is a path to the directory of a Luau project. It will create