try to fix submodule

firmware/lib/Arduino-FOC-drivers/src/settings/i2c/README.md

@@ -0,0 +1,26 @@
+
+# I2C memories settings drivers
+
+Store settings to I2C EEPROMs.
+
+## CAT24C64 I2C EEPROMs
+
+:warning: not yet finished or tested!
+
+Datasheet describes the CAT24C64 as: _The CAT24C64 is a 64 Kb CMOS Serial EEPROM device, internally organized as 8192 words of 8 bits each._
+
+Provide I2C address in constructor:
+
+`CAT24I2CFlashSettingsStorage settings = CAT24I2CFlashSettingsStorage(0xA0);`
+
+If you want to use a different I2C bus than the default, you can pass it to the constructor:
+
+`settings.init(&Wire2);`
+
+You can use multiple settings objects in the same EEPROM, by providing an offset to the constructor:
+
+```c++
+CAT24I2CFlashSettingsStorage settings = CAT24I2CFlashSettingsStorage(0xA0);
+CAT24I2CFlashSettingsStorage settings = CAT24I2CFlashSettingsStorage(0xA0, 80);
+CAT24I2CFlashSettingsStorage settings = CAT24I2CFlashSettingsStorage(0xA0, 160);
+```