generatedImage.ImageUri is null

### Type of issue

Typo

### Description

The generatedImage.**ImageUri** property is null. There seem to be an somewhere.

### Page URL

https://learn.microsoft.com/en-us/dotnet/ai/quickstarts/generate-images?pivots=openai

### Content source URL

https://github.com/dotnet/docs/blob/main/docs/ai/quickstarts/generate-images.md

### Document Version Independent Id

e965775f-8e87-3ce3-57a2-8cc6fcc73fde

### Platform Id

800518c0-181b-692d-23cc-ba07cb9a7862

### Article author

@gewarren

### Metadata

* ID: 58112498-7632-049f-1095-bed939211572
* PlatformId: 800518c0-181b-692d-23cc-ba07cb9a7862
* Service: **dotnet**
* Sub-service: **intelligent-apps**

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