added usage information

Author: Ariel Barabas

cli.js

@@ -4,6 +4,9 @@ const
 cli = require('commander');
 
 cli.
+  usage('[options] <file>').
+  description('Split a movie script into files for each character removing ' +
+      'comments.').
   option('-n, --dry-run', 'don\'t write output files').
   option('-o, --output <path>',
       'specify output directory, default is input file without extension').

readme.md

@@ -0,0 +1,14 @@
+# Script character extractor
+
+Use this script to extract the dialogs from any movie script and get different
+files for every character.
+
+## Usage
+
+Running `node cli.js --help` will get you what you need to get started. An
+example would be:
+
+    node cli.js ~/movie_script.html
+
+that will create a folder named `movie_script` in the same directory with a txt
+file for every character.