Bump the README for version

README.md

@@ -18,6 +18,8 @@ Written by Ian Bell, NIST.
 
 [![PyPI version](https://badge.fury.io/py/teqp.svg)](https://badge.fury.io/py/teqp)
 
+* 0.5.0 Add VLE polishing routine (50b61af05697c01c0a2bf686b256724cc79f73d4), fix bug in critical curve tracing misalignment of eigenvectors(f01ac7be43fcca4e1cd3c502be0259755396436b), assorted issue fixes, especially support for javascript
+
 * 0.4.0 Add VLE tracing, code coverage and valgrind testing, fugacity_coefficients, generalize loading of multifluid models
 
 * 0.3.0 Add integration options to the tracing of the critical curve; fix ``__version__``