Update link for Images Optimization

[mikehoffms]

Rendered article section for review:
https://review.learn.microsoft.com/en-us/microsoft-edge/devtools-guide-chromium/speed/get-started?branch=pr-en-us-2825#automatically-resize-images

Before:
https://learn.microsoft.com/en-us/microsoft-edge/devtools-guide-chromium/speed/get-started#automatically-resize-images

Evidence of the needed update of link:

AB#46417230

[learn-build-service-prod]

Learn Build status updates of commit a18153c:

✅ Validation status: passed

File	Status	Preview URL	Details
microsoft-edge/devtools-guide-chromium/speed/get-started.md	✅Succeeded	View

For more details, please refer to the build report.

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