Update README.md
Update README.md
Merge pull request #114 from seanchen1991/master

(refactor) Using render_file and render_text in lib.rs to get rid of unused code warnings
(refactor) updated parser and compiler, updated incorrect test
(refactor) all tests now passing under character compiler
(refactor) added comment token tagging
(refactor) updated parser templat and rustache to pass tokens as mutable references
(refactor) updated to handle whitespace, 3 new tests passing
Merge pull request #115 from jangahroo/master

(refactor) updated parser and compiler to handle comment whitespace
Started moving tests to use render_text and render_file
(refactor) Deprecated old  functions and replaced them with render_file and render_text