Merge pull request #308 from edvm/issue/306

docs(README.md): adds missing link

Author: woile

docs/README.md

@@ -12,7 +12,7 @@ versions](https://img.shields.io/pypi/pyversions/commitizen.svg?style=flat-squar
 
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-**Documentation**: https://commitizen-tools.github.io/commitizen/
+**Documentation:** [https://commitizen-tools.github.io/commitizen/](https://commitizen-tools.github.io/commitizen/)
 
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