Enable some features for docs.rs?

[Shadlock0133]

Currently, docs.rs doesn't show Image functions which are behind a "embedded_images" feature flag. Here is docs.rs's docs on how to enable it: https://docs.rs/about/metadata. I think adding this to Cargo.toml should work:

[package.metadata.docs.rs]
features = ["embedded_images"]

[fschutt]

The images feature will be removed in 0.8, it will always be on but not have any image formats enabled by default (so users have to enable png / jpeg / ... separately).