Basic Docs

Updated

Final cleanup

docs/flashing.md

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+# Flashing Instructions
+
+Flashing sequence:
+
+1. Press the `KC.RESET` keycode, or tap the RESET button.
+2. Wait for the OS to detect the device
+3. Flash a .hex file (May be done automatically)
+4. Reset the device into application mode (May be done automatically)
+
+or:
+
+    make flash-<board> USER_KEYMAP=user_keymaps/...
+
+Example:
+
+	make flash-feather-m4-express USER_KEYMAP=user_keymaps/kdb424/handwire_planck_featherm4.py
+
+