Change example name in CMakeLists and README.md

Author: jcarranz97

README.md

@@ -244,7 +244,7 @@ App|Description
 [hello_pwm](pwm/hello_pwm) | Minimal example of driving PWM output on GPIOs.
 [led_fade](pwm/led_fade) | Fade an LED between low and high brightness. An interrupt handler updates the PWM slice's output level each time the counter wraps.
 [measure_duty_cycle](pwm/measure_duty_cycle) | Drives a PWM output at a range of duty cycles, and uses another PWM slice in input mode to measure the duty cycle.
-[tone_generation :speaker::musical_score::notes:](pwm/tone_generation) | Play a christmas melody by generating square waves with PWM and a Buzzer :.
+[pico_tone](pwm/pico_tone) | Play a christmas melody :notes::christmas_tree: by generating square waves with PWM and a Buzzer.
 
 ### Reset
 

pwm/CMakeLists.txt

@@ -2,5 +2,5 @@ if (NOT PICO_NO_HARDWARE)
     add_subdirectory(hello_pwm)
     add_subdirectory(led_fade)
     add_subdirectory(measure_duty_cycle)
-    add_subdirectory(tone_generation)
+    add_subdirectory(pico_tone)
 endif ()

pwm/pico_tone/CMakeLists.txt

@@ -1,12 +1,12 @@
-add_executable(tone_generation
-    tone_generation.c
+add_executable(pico_tone
+    pico_tone.c
 )
 
 # Add pico_stdlib library which aggregates commonly used features
-target_link_libraries(tone_generation pico_stdlib hardware_pwm)
+target_link_libraries(pico_tone pico_stdlib hardware_pwm)
 
 # Create map/bin/hex/uf2 file in addition to ELF.
-pico_add_extra_outputs(tone_generation)
+pico_add_extra_outputs(pico_tone)
 
 # add url via pico_set_program_url
-example_auto_set_url(tone_generation)
+example_auto_set_url(pico_tone