fix typo "the an"

Author: American-Dipper

articles/cognitive-services/language-service/custom-text-analytics-for-health/overview.md

@@ -47,7 +47,7 @@ Using custom Text Analytics for health typically involves several different step
 
 * **View the model's performance**: After training is completed, view the model's evaluation details, its performance and guidance on how to improve it. 
 
-* **Deploy the model**: Deploying a model makes it available for use via the an API.
+* **Deploy the model**: Deploying a model makes it available for use via an API.
 
 * **Extract entities**: Use your custom models for entity extraction tasks.
 
@@ -74,4 +74,4 @@ An AI system includes not only the technology, but also the people who will use
 
 * As you go through the project development lifecycle, review the glossary to learn more about the terms used throughout the documentation for this feature. 
 
-* Remember to view the [service limits](reference/service-limits.md) for information such as [regional availability](reference/service-limits.md#regional-availability).
+* Remember to view the [service limits](reference/service-limits.md) for information such as [regional availability](reference/service-limits.md#regional-availability).