[LICENSE] Add a LICENSE file to be more explicit

[MNThomson]

The license is stated in the Cargo.toml (thx @DanInProgress), lets add an explicit LICENSE files

htmx-lsp/Cargo.toml

Lines 1 to 8 in 040b129

	[package]
	name = "htmx-lsp"
	version = "0.1.0"
	edition = "2021"
	description = "A language server for htmx"
	license = "MIT"
	homepage = "https://github.com/ThePrimeagen/htmx-lsp"

Closes #27