Add a license (MIT/X11).

LICENSE.markdown

@@ -0,0 +1,18 @@
+Copyright (C) 2012 Steve Losh and Contributors
+
+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.**

README.markdown

@@ -6,6 +6,8 @@ A color scheme for Vim, pieced together by [Steve Losh](http://stevelosh.com/).
 There's still quite a lot of room for improvement (particularly in HTML) so feel
 free to send me ideas through the [issue tracker][] or pull requests.
 
+It's MIT/X11 licensed, so feel free to hack it apart if you like.
+
 **If you're going to send a pull request that you want me to merge, please post
 a comment in it with before/after screenshots!**