Update README.md

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@ -36,7 +36,7 @@ For more details see the [MPU-6050 datasheet](/docs/1_MPU-6000-Datasheet.pdf) an
On the sideboard, there is a debugging header with GND, 3V3, SWDIO and SWCLK. Connect GND, SWDIO and SWCLK to your ST-Link V2 programmer. The 3V3 can be either obtained by connecting the pin to the ST-Link programmer or powering the sideboard with 12/15V.
If you never flashed your sideboard before, the MCU is probably locked. To unlock the flash, check-out the [wiki page](link).
If you have never flashed your sideboard before, the MCU is probably locked. To unlock the flash, check-out the wiki page [How to Unlock MCU flash](https://github.com/EmanuelFeru/hoverboard-firmware-hack-FOC/wiki/How-to-Unlock-MCU-flash).
To build and flash choose one of the following methods:
@ -77,7 +77,7 @@ Of course the firmware can be further customized for other needs or projects.
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## 3D Visualization Demo
By [converting Quaternions to Euler angles](https://en.wikipedia.org/wiki/Conversion_between_quaternions_and_Euler_angles), we can make a [3D visualization example](/docs/sketch_processing/sketch_processing.pde) in [Processing](https://processing.org/) as shown here:
By [converting Quaternions to Euler angles](https://en.wikipedia.org/wiki/Conversion_between_quaternions_and_Euler_angles), we can make a [3D visualization example](/docs/sketch_processing/sketch_processing.pde) in [Processing](https://processing.org/) as shown below. For this Demo use the VARIANT_HOVERBOARD.
![sketch_pic](/docs/pictures/sketch_processing_pic.png)
@ -87,7 +87,7 @@ By [converting Quaternions to Euler angles](https://en.wikipedia.org/wiki/Conver
Every contribution to this repository is highly appriciated! Feel free to create pull requests to improve this firmware as ultimately you are going to help everyone.
If you want to donate to keep this firmware updated, check-out the link below:
If you want to donate to keep this firmware updated, please use the link below:
[![paypal](https://www.paypalobjects.com/en_US/NL/i/btn/btn_donateCC_LG.gif)](https://www.paypal.com/cgi-bin/webscr?cmd=_donations&business=CU2SWN2XV9SCY&currency_code=EUR&source=url)