Update README.md

Author: ospillinger

README.md

@@ -8,7 +8,7 @@
 
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-Cortex is a machine learning model deployment platform that runs in your AWS account. You define deployments with simple declarative configuration and Cortex deploys your models as JSON APIs. It also handles autoscaling, rolling updates, log streaming, inference on CPUs or GPUs, and more.
+Cortex is a self-hosted machine learning deployment platform. You define deployments with simple declarative configuration and Cortex deploys your models as web APIs. It also handles autoscaling, rolling updates, log streaming, inference on CPUs or GPUs, and more.
 
 Cortex is actively maintained by a venture-backed team of infrastructure engineers and [we're hiring](https://angel.co/cortex-labs-inc/jobs).
 
@@ -59,7 +59,7 @@ $ curl -d '{"a": 1, "b": 2, "c": 3}' https://amazonaws.com/my-api
 
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-## Spinning up a Cortex cluster on your AWS account
+## Self-hosting Cortex on AWS
 
 ```bash
 # Download the install script