Update Readme.md

Readme.md

@@ -47,8 +47,8 @@ You can also provide arbitrary releases Python with a `runtime.txt` file.
 Runtime options include:
 
 - python-2.7.11
-- python-3.5.0
-- pypy-2.6.1 (unsupported, experimental)
+- python-3.5.1
+- pypy-4.0.1 (unsupported, experimental)
 - pypy3-2.4.0 (unsupported, experimental)
 
 Other [unsupported runtimes](https://github.com/heroku/heroku-buildpack-python/tree/master/builds/runtimes) are available as well.