Added missing subheading

Author: madeline-underwood

content/learning-paths/embedded-and-microcontrollers/introduction-to-tinyml-on-arm/3-env-setup-fvp.md

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+## Overview
+
 In this section, you run scripts to set up the Corstone-320 reference package.
 
 The Corstone-320 Fixed Virtual Platform (FVP) is a pre-silicon software development environment for Arm-based microcontrollers. It provides a virtual representation of hardware so you can test and optimize software before boards are available. Designed for AI and machine learning workloads, it includes support for Arm Ethos-U NPUs and Cortex-M processors, which makes it well-suited to embedded AI applications. The FVP accelerates development by enabling early software validation and performance tuning in a flexible, simulation-based environment.