Fix example features

Author: MabezDev

Cargo.toml

@@ -52,7 +52,11 @@ stm32l4x6 = ["stm32l4/stm32l4x6"]
 panic-semihosting = "0.5.0"
 cortex-m-semihosting = "0.3.1"
 cortex-m-rt = "0.6.5"
-stm32l4xx-hal = { path = "./", features = ["rt", "stm32l4x2"]}
+
+[dev-dependencies.stm32l4xx-hal]
+version = "*"
+path = "."
+features = ["rt", "stm32l4x2"]
 
 [profile.dev]
 incremental = false