dc/hbj11/flasher: fix build

Change-Id: Ic59ad67ab0cf1a5a1c5c83a03936868ad3c89c2f
diff --git a/dc/hbj11/flasher/bluepill/src/main.rs b/dc/hbj11/flasher/bluepill/src/main.rs
index da6cefd..45279c2 100644
--- a/dc/hbj11/flasher/bluepill/src/main.rs
+++ b/dc/hbj11/flasher/bluepill/src/main.rs
@@ -23,8 +23,9 @@
 mod i2c;
 mod print;
 
-/// The main RTIC application object. See RTIC documentation for more information about how to read
-/// this.
+// The main RTIC application object. See RTIC documentation for more information about how to read
+// this.
+
 #[app(device = stm32f1xx_hal::stm32, peripherals = true)]
 const APP: () = {
     struct Resources {