add license and readme

Gruntfile.js

@@ -1,3 +1,29 @@
+/*
+MathJax-grunt-cleaner
+=====================
+A grunt file to reduce the footprint of a MathJax installation
+
+Latest version at https://github.com/pkra/MathJax-grunt-cleaner
+
+Copyright (c) 2014 Mathjax Consortium
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
+*/
+
 module.exports = function(grunt) {
 
 //   # Notes #

README.md

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+# MathJax-grunt-cleaner
+
+A grunt file to reduce the footprint of a MathJax installation
+
+* copy & rename the `template` task
+* comment out the components you want to keep (perhaps **counterintuitive**)
+
+See the comments in file for more details and caveats.