remove duplicate "an"
@@ -98,7 +98,7 @@ Hundreds of organisations and packages are using *pydantic*, including:
: are using *pydantic* in [WALKOFF](https://github.com/nsacyber/WALKOFF), an open-source automation framework.
**Uber**
-: are using *pydantic* in [Ludwig](https://github.com/uber/ludwig), an an open-source TensorFlow wrapper.
+: are using *pydantic* in [Ludwig](https://github.com/uber/ludwig), an open-source TensorFlow wrapper.
**Cuenca**
: are a Mexican neobank that uses *pydantic* for several internal
