Automatically update CLI help on readme before publishing

Author: 1j01

package.json

@@ -18,6 +18,7 @@
  "scripts": {
  "build": "coffee -c -o build/ src/",
  "prepare": "npm run build",
+ "prepublishOnly": "npm run update-cli-docs",
  "test": "npm run build && node src/test.js",
  "update-cli-docs": "node -e \"const fs = require('fs'); fs.writeFileSync('README.md', fs.readFileSync('README.md', 'utf8').replace(/```HELP_OUTPUT.+?```/s, '```HELP_OUTPUT\\n' + require('child_process').execSync('ascii-hypercube --help').toString().trim() + '\\n```'))\""
  },