add an option about display server protocol, and create document `docs/cargo_features.md`#249

Merged

cart merged 8 commits intobevyengine:masterfrom VitalyAnkh:master

Aug 25, 2020

+79-3

Commits on Aug 19, 2020

Commits on Aug 21, 2020

update comment in Cargo.toml, add docs/features.md to elaborate the features of Bevy
VitalyAnkh
committed
add link to docs/features.md in README.md
VitalyAnkh
committed

Commits on Aug 22, 2020

Commits on Aug 24, 2020

Merge branch 'master' into master
VitalyAnkh
authored