Add minipic to image compressor list (#7489)

* Add minipic to image compressor list

* Update src/data/best-practices/frontend-performance/content/compress-your-images.md

capitalized

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Co-authored-by: dsh <daniel.s.holdsworth@gmail.com>

src/data/best-practices/frontend-performance/content/compress-your-images.md

@@ -16,3 +16,4 @@ Optimized images load faster in your browser and consume less data.
 - [Cloudinary - Image Analysis Tool](https://webspeedtest.cloudinary.com)
 - [ImageEngine - Image Webpage Loading Test](https://demo.imgeng.in)
 - [SVGOMG - Optimize SVG vector graphics files](https://jakearchibald.github.io/svgomg/)
+- [Minipic - Convert Images Super Fast](https://minipic.app/)