Set features for doc.rs (#18)

Author: usbalbin

Cargo.toml

@@ -3,6 +3,9 @@ name = "stm32-hrtim"
 version = "0.1.0"
 edition = "2021"
 
+[package.metadata.docs.rs]
+features = ["stm32g474", "defmt"]
+
 [dependencies]
 stm32f3 = { version = "0.16.0", optional = true }
 stm32h7 = { version = "0.16.0", optional = true }