fix readme & script to reflect '' glob requirement

Author: Cdok

copyright/README.md

@@ -2,7 +2,7 @@
 
 This tool reads from the `headers/copyright-header.extension` files to select what header to insert, where `extension` is the target file extension
 
-**NOTE**: For any new `copyright-header.extension` files, write `Copyright (c) year` instead of writing the numerical year, the tool will find and replace `year` with the current year.
+For any new `copyright-header.extension` files, write `Copyright (c) year` instead of writing the numerical year, as the tool will find and replace `year` with the current year.
 
 ## Quick Start
 
@@ -14,6 +14,11 @@ Add the following to your `package.json` under `"scripts": { ... }`
     "copyright:update" "copyright 'glob' --update"
 ```
 
+**NOTE**: The glob must be wrapped in single quotes to ensure that the globbing is handled by the copyright tool.
+
+Without wrapping the glob pattern in single quotes, your shell will expand the glob, and may not return the same directories across different environments.
+
+
 ```bash
 npm install mobify-code-style --save
 npm run copyright:lint

copyright/copyright.js

@@ -69,7 +69,7 @@ if (args.length === 0 || args.indexOf('--help') >= 0) {
     console.log(`
     Usage: node copyright.js [options] 'glob' ['additional globs']
 
-    If your glob is not targetting all nested directories, ensure that the glob string is wrapped in quotes
+    If your glob is not targetting all nested directories, ensure that the glob string is wrapped in single quotes
 
     Example:
         ${yellow}node copyright.js --fix${defaultFG} 'src/**/*.js'