README: Fix link to codecov

README.md

@@ -102,7 +102,7 @@ Lark is great at handling ambiguity. Here is the result of parsing the phrase "f
  - Automatic line & column tracking
  - Standard library of terminals (strings, numbers, names, etc.)
  - Import grammars from Nearley.js ([read more](/docs/tools.md#importing-grammars-from-nearleyjs))
- - Extensive test suite [![codecov](https://codecov.io/gh/erezsh/lark/branch/master/graph/badge.svg)](https://codecov.io/gh/erezsh/lark)
+ - Extensive test suite [![codecov](https://codecov.io/gh/lark-parser/lark/branch/master/graph/badge.svg?token=lPxgVhCVPK)](https://codecov.io/gh/lark-parser/lark) 
  - MyPy support using type stubs
  - And much more!