Fix small Doxygen syntax-typos

Author: lurch

src/host/pico_status_led/include/pico/status_led.h

@@ -43,7 +43,7 @@ extern "C" {
 #define PICO_COLORED_STATUS_LED_USES_WRGB 0
 #endif
 
-/*! \brief Generate an RGB color value for /ref colored_status_led_set_on_with_color
+/*! \brief Generate an RGB color value for \ref colored_status_led_set_on_with_color
  *  \ingroup pico_status_led
  */
 #ifndef PICO_COLORED_STATUS_LED_COLOR_FROM_RGB

src/rp2_common/pico_status_led/include/pico/status_led.h

@@ -57,7 +57,7 @@ extern "C" {
 #define PICO_COLORED_STATUS_LED_USES_WRGB 0
 #endif
 
-/*! \brief Generate an RGB color value for /ref colored_status_led_set_on_with_color
+/*! \brief Generate an RGB color value for \ref colored_status_led_set_on_with_color
  *  \ingroup pico_status_led
  */
 #ifndef PICO_COLORED_STATUS_LED_COLOR_FROM_RGB