Rename FuriHalDebuging.md to FuriHalDebugging.md (#4047)

Fixed Typo

Co-authored-by: あく <alleteam@gmail.com>

documentation/FuriHalDebugging.md

@@ -0,0 +1,30 @@
+# Furi HAL Debugging {#furi_hal_debugging}
+
+Some Furi subsystems have additional debugging features that can be enabled by adding additional defines to firmware compilation.
+Usually, they are used for low level tracing and profiling or signal redirection/duplication.
+
+
+## FuriHalOs
+
+`--extra-define=FURI_HAL_OS_DEBUG` enables tick, tick suppression, idle and time flow.
+
+There are 3 signals that will be exposed to external GPIO pins:
+
+- `AWAKE`   — `PA7` — High when system is busy with computations, low when sleeping. Can be used to track transitions to sleep mode.
+- `TICK`    — `PA6` — Flipped on system tick, only flips when no tick suppression in progress. Can be used to track tick skew and abnormal task scheduling.
+- `SECOND`  — `PA4` — Flipped each second. Can be used for tracing RT issue: time flow disturbance means system doesn't conform Hard RT.
+
+
+
+## FuriHalPower
+
+`--extra-define=FURI_HAL_POWER_DEBUG` enables power subsystem mode transitions tracing.
+
+There are 2 signals that will be exposed to external GPIO pins:
+
+- `WFI`     — `PB2` — Light sleep (wait for interrupt) used. Basically, this is the lightest and most non-breaking things power save mode. All functions and debug should work correctly in this mode.
+- `STOP`    — `PC3` — STOP mode used. Platform deep sleep mode. Extremely fragile mode where most of the silicon is disabled or in unusable state. Debugging MCU in this mode is nearly impossible.
+
+## FuriHalSD
+
+`--extra-define=FURI_HAL_SD_SPI_DEBUG` enables SD card SPI bus logging.