02.API-REFERENCE.md format the Note: (#5195) #4354

Job	Run time
Linux_x86_cpointer-32bit_Build_Correctness_Tests	2m 8s
OSX_x86-64_Build_Correctness_Unit_Tests	4m 14s
Checks	5m 16s
Linux_x86-64_Build_Correctness_Debugger_Tests	5m 0s
Linux_x86-64_Build_Option_Tests	4m 17s
ASAN_Tests	3m 29s
OSX_x86-64_Build_Correctness_Unit_Tests_Debug	3m 43s
Clang_Unit_Build_Option_Tests	4m 16s
Conformance_Tests_ESNext	2m 8s
Conformance_Tests_ESNext_Debug_A	2m 9s
Conformance_Tests_ESNext_Debug_B	1m 19s
Unit_Tests	1m 50s
ASAN_Tests_Debug	3m 44s
Linux_AArch64_Tests	4m 50s
Linux_AArch64_Tests_Debug	6m 42s
Linux_ARMv7l_Tests_Debug	5m 59s
Linux_ARMv7l_Tests	4m 28s
MbedOS_K64F_Build_Test	1m 38s
UBSAN_Tests	2m 13s
Zephyr_STM32F4_Build_Test	2m 59s
ESP_IDF_Build_Test	3m 38s
ESP8266_RTOS_SDK_Build_Test	1m 30s
Notification	0s
NuttX_STM32F4_Build_Test	2m 17s
RIOT_STM32F4_Build_Test	1m 11s
	1h 20m 58s

Provide feedback