[ImgBot] Optimize images

[imgbot[bot]]

Beep boop. Your images are optimized!

Your image file size has been reduced by 13% 🎉

Details

File	Before	After	Percent reduction
/images/upload-to-colab.png	3.66kb	2.41kb	34.20%
/images/Presentation images/import model.png	60.67kb	51.34kb	15.37%
/ML-Example-App/app/src/main/res/mipmap-xxxhdpi/ic_launcher.png	10.40kb	9.54kb	8.33%
/ML-Example-App/app/src/main/res/mipmap-xxhdpi/ic_launcher.png	7.72kb	7.27kb	5.88%
/ML-Example-App/app/src/main/res/mipmap-hdpi/ic_launcher.png	3.51kb	3.43kb	2.14%
/ML-Example-App/app/src/main/res/mipmap-xhdpi/ic_launcher.png	4.81kb	4.71kb	2.07%
Total :	90.78kb	78.70kb	13.30%

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