JS: Make npm module importable. Update instructions.

.gitignore

@@ -8,4 +8,5 @@ RegPack/node_modules
 old
 notes
 *.pyc
+*.pyz
 *-minipy.py

README.md

@@ -18,7 +18,7 @@ fairly different from mal so it is a standalone project.
 
 You can try out miniMAL with the [online REPL](http://kanaka.github.io/miniMAL/).
 
-The easiest way to install miniMAL is via npm:
+Install the miniMAL binary using npm:
 
 ```bash
 sudo npm install -g minimal-lisp
@@ -29,13 +29,13 @@ There are several different ways to use and/or integrate miniMAL:
 * **Start a REPL**: run the miniMAL REPL (read-eval-print-loop). Requires
   Node.js.
 ```bash
-./miniMAL
+miniMAL
 ```
 
 * **Run a miniMAL program**: run a miniMAL program and then exit.
   Requires Node.js.
 ```bash
-./miniMAL hello.json
+miniMAL hello.json
 ```
 
 * **As a shebang script**: add a shebang line to the top of your
@@ -48,18 +48,25 @@ chmod +x hello2.json
 ./hello2.json
 ```
 
+To use miniMAL as a library in another project, first install the
+module locally using npm:
+
+```bash
+sudo npm install minimal-lisp
+```
+
 * **Node.js library**: you can use the miniMAL Node.js library to
   evaluate miniMAL source code in a regular Node.js program.
 ```javascript
-var miniMAL = require('./miniMAL-node.js'),
+var miniMAL = require('minimal-lisp'),
     m = miniMAL();
 m.eval(["+", 2, 3]); 
 ```
 
 * **Web library**: you can use the miniMAL web library to evaluate
   miniMAL code in your web application.
 ```html
-<script src="miniMAL-min.js"></script>
+<script src="node_modules/minimal-lisp/js/web/miniMAL-min.js"></script>
 <script>
 var m = miniMAL();
 m.eval(["+", 2, 3]); 

js/index.js

@@ -0,0 +1 @@
+module.exports = require('./miniMAL-node.js');

js/package.json

@@ -14,6 +14,7 @@
     "files": [
         "miniMAL",
         "miniMAL-node.js",
+        "index.js",
         "miniMAL-min.js",
         "miniMAL-js1k.js",
         "step*.js",