Update README.md

Author: ospillinger

README.md

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-**Machine learning platform for developers: build machine learning applications faster.**
+**Machine learning infrastructure platform for developers: build machine learning applications faster.**
 
-Cortex is an open-source platform for building, deploying, and managing machine learning applications in production. It is designed for developers wanting to build services powered by machine learning without the worries of infrastructure challenges such as configuring data pipelines, continuous deployment, and workload orchestration.
+Cortex is an open source platform for building, deploying, and managing machine learning applications in production. It is designed for developers wanting to build services powered by machine learning without the worries of infrastructure challenges such as configuring data pipelines, continuous deployment, and workload orchestration.
 
 Cortex is actively maintained by Cortex Labs. We're a venture-backed team of infrastructure engineers and [we're hiring](https://angel.co/cortex-labs-inc/jobs).