Make a separate Clojure directory.

Add a hello arguments example.
Add some ClojureScript examples.
Add a readme.

Clojure/README.md

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+# [Clojure](https://clojure.org/) is a robust, practical, and fast programming language with a set of useful features that together form a simple, coherent, and powerful tool.
+
+Clojure is a dialect of Lisp that runs on the Java Virual Machine.
+
+```
+$ ./hello.clj 
+Hello, World!
+```
+
+The command line arguments are passed in as `*command-line-args*`
+
+```
+$ ./hello.clj Hank Dean Brock
+Hello, Hank!
+Hello, Dean!
+Hello, Brock!
+```
+
+# [ClojureScript](https://clojure.org/about/clojurescript) is a compiler for Clojure that targets JavaScript.
+
+## [Planck](http://planck-repl.org/) is a stand-alone ClojureScript REPL based on [JavaScriptCore](https://webkit.org/).
+
+```
+$ ./hello-planck 
+Hello, World!
+```
+
+It has its own way of getting the `*command-line-args*`
+
+```
+$ ./hello-planck Hank Dean Brock
+Hello, Hank!
+Hello, Dean!
+Hello, Brock!
+```
+
+but otherwise it looks like Clojure.
+
+## [Lumo](https://github.com/anmonteiro/lumo) is a stand-alone ClojureScript REPL based on [V8](https://nodejs.org/).
+
+
+```
+$ ./hello-lumo
+Hello, World!
+```
+
+We get the command line arguments through Node.js
+
+```
+$ ./hello-lumo Hank Dean Brock
+Hello, Hank!
+Hello, Dean!
+Hello, Brock!
+```
+
+Just as Clojure as easy interop with Java, ClojureScript has easy interop with JavaScript.

Clojure/hello-lumo

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+#!/usr/bin/env lumo
+;; -*- clojure -*-
+
+(def process (js/require "process"))
+
+(def args (.slice (.-argv process) 3))
+
+(defn greet [name]
+  (println (str "Hello, " name "!")))
+
+(if (empty? args)
+  (greet "World")
+  (doseq [name args]
+    (greet name)))
+

Clojure/hello-planck

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+#!/usr/bin/env planck
+;; -*- clojure -*-
+
+(ns hello.core
+  (:require [planck.core :refer [*command-line-args*]]))
+
+(def args *command-line-args*)
+
+(defn greet [name]
+  (println (str "Hello, " name "!")))
+
+(if (empty? args)
+  (greet "World")
+  (doseq [name args]
+    (greet name)))
+

Clojure/hello.clj

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+#!/usr/bin/env clj
+
+(def args *command-line-args*)
+
+(defn greet [name]
+  (println (str "Hello, " name "!")))
+
+(if (empty? args)
+  (greet "World")
+  (doseq [name args]
+    (greet name)))
+