Update README.md [ci skip]

README.md

@@ -16,7 +16,7 @@ configure and deploy custom models** built with their favorite framework.
 [![Azure Pipelines](https://img.shields.io/azure-devops/build/explosion-ai/public/7/master.svg?logo=azure-pipelines&style=flat-square)](https://dev.azure.com/explosion-ai/public/_build?definitionId=7)
 [![codecov](https://img.shields.io/codecov/c/gh/explosion/thinc?logo=codecov&logoColor=white&style=flat-square)](https://codecov.io/gh/explosion/thinc)
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-[![PyPi Version](https://img.shields.io/pypi/v/thinc.svg?style=flat-square&logo=pypi&logoColor=white)](https://pypi.python.org/pypi/thinc)
+[![PyPi Version](https://img.shields.io/pypi/v/thinc.svg?include_prereleases&sort=semver&style=flat-square&logo=pypi&logoColor=white)](https://pypi.python.org/pypi/thinc)
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@@ -39,7 +39,7 @@ Thinc is compatible with **Python 3.6+** and runs on **Linux**,
 [pip](https://pypi.python.org/pypi/thinc).
 
 ```bash
-pip install thinc==8.0.0a0
+pip install thinc==8.0.0a1
 ```
 
 > ⚠️ Note that Thinc 8.0 is currently **in alpha preview** and not necessarily ready