final checks

Author: madeline-underwood

content/learning-paths/servers-and-cloud-computing/cpp-profile-guided-optimisation/how-to-3.md

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-## Introduction
+## Optimizing costly division operations with Google Benchmark and PGO
 
 In this section, you'll learn how to use Google Benchmark and Profile-Guided Optimization to improve the performance of a simple division operation. This example demonstrates how even seemingly straightforward operations can benefit from optimization techniques.