iOS and Android image segmentation tutorials; minor recipes code and typo fix for 1.7#1213

Merged

brianjo merged 21 commits intopytorch:masterfrom

jeffxtang:mobile_recipes_tutorials

Nov 12, 2020

Commits on Oct 20, 2020

Commits on Oct 21, 2020

Commits on Oct 24, 2020

edits based on feedback
jeffxtang
committed

Commits on Oct 28, 2020

added limitation warning for dynamic quantization
jeffxtang
committed

Commits on Oct 29, 2020

link fix for quantization and model prep for ios recipes
jeffxtang
committed

Commits on Oct 30, 2020

Commits on Nov 4, 2020

Commits on Nov 5, 2020

further update on the iOS and Android segmentation tutorials
jeffxtang
committed

Commits on Nov 6, 2020

minor and maybe final edits for two tutorials
jeffxtang
committed

Commits on Nov 11, 2020