feat(hw_cdc): formating text code

Applying Code style and formating.

Author: SuGlider

idf_component_examples/hw_cdc_hello_world/main/main.cpp

@@ -1,8 +1,14 @@
 #include <Arduino.h>
 
 void setup() {
-  Serial.begin(); // USB CDC doens't need a baud rate
-  while(!Serial) delay(100); // wait for the Serial Monitor to be open
+  // USB CDC doens't need a baud rate
+  Serial.begin();
+  
+  // wait for the Serial Monitor to be open
+  while(!Serial) {
+    delay(100);
+  }
+  
   Serial.println("\r\nStarting...\r\n");
 }