[GR-51843] Add Pkl to the set of languages.

PullRequest: graal/16846

Author: chumer

truffle/docs/Languages.md

@@ -7,14 +7,15 @@ permalink: /graalvm-as-a-platform/language-implementation-framework/Languages/
 # Language Implementations
 
 This page is intended to keep track of the growing number of language implementations and experiments on top of Truffle.
-The following language implementations exist already:
-
+The following language implementations exist already (in alphabetical order):
+* [Enso](https://github.com/enso-org/enso), an open source, visual language for data science that lets you design, prototype and develop any application by connecting visual elements together.
 * [Espresso](https://github.com/oracle/graal/tree/master/espresso), a meta-circular Java bytecode interpreter. *
 * [FastR](https://github.com/graalvm/fastr), an implementation of GNU R. *
 * [Graal.js](https://github.com/graalvm/graaljs), an ECMAScript 2020 compliant JavaScript implementation. *
 * [GraalPy](https://github.com/graalvm/graalpython), an early-stage implementation of Python. *
 * [GraalWasm](https://github.com/oracle/graal/tree/master/wasm), a compliant WebAssembly implementation. *
 * [grCUDA](https://github.com/NVIDIA/grcuda), a polyglot CUDA integration.
+* [Pkl](https://github.com/apple/pkl), a configuration as code language with rich validation and tooling.
 * [SimpleLanguage](https://github.com/graalvm/simplelanguage), a toy language implementation to demonstrate Truffle features.
 * [SOMns](https://github.com/smarr/SOMns), a Newspeak implementation for Concurrency Research.
 * [Sulong](https://github.com/oracle/graal/tree/master/sulong), an LLVM bitcode interpreter. *
@@ -23,7 +24,7 @@ The following language implementations exist already:
 * [TruffleSOM](https://github.com/SOM-st/TruffleSOM), a SOM Smalltalk implementation.
 * [TruffleSqueak](https://github.com/hpi-swa/trufflesqueak/), a Squeak/Smalltalk VM implementation and polyglot programming environment.
 * [Yona](https://yona-lang.org/), the reference implementation of a minimalistic, strongly and dynamically-typed, parallel and non-blocking, polyglot, strict, functional programming language.
-* [Enso](https://github.com/enso-org/enso), an open source, visual language for data science that lets you design, prototype and develop any application by connecting visual elements together.
+
 
 \* Shipped as part of [GraalVM](https://www.oracle.com/technetwork/graalvm/downloads/index.html).