Include examples so that cargo publish works

Author: daniel-abramov

Cargo.toml

@@ -12,7 +12,7 @@ repository = "https://github.com/snapview/tungstenite-rs"
 version = "0.20.0"
 edition = "2018"
 rust-version = "1.51"
-include = ["benches/**/*", "src/**/*", "LICENSE-*", "README.md", "CHANGELOG.md"]
+include = ["benches/**/*", "src/**/*", "examples/**/*", "LICENSE-*", "README.md", "CHANGELOG.md"]
 
 [package.metadata.docs.rs]
 all-features = true