バイナリのFlash方法とライセンスを追加します (#2)

* first commit

* fix lib link

* remove gitignore

* ignore

* add readme

* add binary file licence

Author: chama1176

LICENCE_binary.md

@@ -1,2 +1,20 @@
 The firmware binary files are provided under the following license.
-TODO
+
+## RT-USB-9axisIMU3 sample program
+[LICENCE](./LICENCE)
+
+## ICM-20948 library
+https://github.com/sparkfun/SparkFun_ICM-20948_ArduinoLibrary/blob/v1.2.5/License.md#code
+
+## STM32duino
+### BoardManagerFiles
+https://github.com/stm32duino/BoardManagerFiles/blob/main/LICENSE
+### stm32_svd
+https://github.com/stm32duino/stm32_svd/blob/5e1836d1224ddc9453c317791678c6c9f12bf967/License.md
+### Arduino_Tools
+https://github.com/stm32duino/Arduino_Tools/blob/8017b405abf5534cb34afdf78184be14bf371607/LICENCE.md
+### Arduino_Core_STM32
+https://github.com/stm32duino/Arduino_Core_STM32/blob/8c31e50ca9b7b91ebf63fe252dcee0cbbd9a5299/License.md
+
+## Arduino IDE
+https://github.com/arduino/arduino-ide?tab=readme-ov-file#license

README.md

@@ -48,4 +48,5 @@ Start the device in BOOT mode (please power it on while holding the switch).
 Power on the device in boot mode and proceed with flashing the firmware.
 
 ## Flashing the Binary
-TODO
+Please download the binary to be flashed from the [releases page](https://github.com/rt-net/rt-usb-9axis-imu3-stm32duino-fw/releases).
+Please flash it using STM32CubeProg.