Add reference to Nucleo2USB

hardware.md

@@ -11,7 +11,7 @@
 | stm32f429xi    | NUCLEO-F429ZI              |                                             |
 | stm32f429xi_hs | NUCLEO-F429ZI              |                                             |
 | stm32l433cc    | bluepill with STM32L433CC  | direct replacement, R10 removed             |
-| stm32f070xb    | bluepill with STM32F070CB  | direct replacemrnt, R10 removed             |
+| stm32f070xb    | bluepill with STM32F070CB  | direct replacement, R10 removed             |
 | stm32g431xb    | NUCLEO-G431RB + NUCLEO2USB |                                             |
 | stm32f446xc    | NUCLEO-F446RE + NUCLEO2USB |                                             |
 | stm32f446xc_hs | NUCLEO-F446RE + NUCLEO2USB |                                             |
@@ -21,17 +21,4 @@
 | stm32f405xg_hs | NUCLEO-F405RG + NUCLEO2USB | based on NUCLEO-F103RE, 0.1uF at SB33, SB38 |
 
 
-## NUCLEO2USB SHIELD V0.1
-
-![NUCLEO2USB SHUELD](https://user-images.githubusercontent.com/15378501/89074235-b1c76500-d384-11ea-9881-f75be2e58cda.JPG)
-
-+ Compatible with NUCLEO-64 boards
-+ Can be configured as 2xOTGFS, 1xOTGFS, 2xDEVFS, 1xDEVFS, 1xDEVFS+1xOTGFS
-+ Can provide power to the baseboard from USB1 USB2 and STLINK(U5V) via E5V pin
-+ USB FS/LS override jumper (for the NUCLEO-F303RE / NUCLEO-F103RB)
-+ 2x micro USB TYPE B connectors
-+ ESCDA5V3SC6 USB ESD protection
-+ LM3526L USB-OTG power switch with over-current protection
-
-If you are interested in this device or if you have any questions and suggestions please feel
- free to contact me by e-mail.
+[NUCLEO2USB SHIELD](https://github.com/dmitrystu/Nucleo2USB)

readme.md

@@ -94,7 +94,7 @@ All requirements can be downloaded into a directory specified in environment var
 3. Tested with STM32L052K8, STM32L100RC, STM32L476RG, STM32F072C8, STM32F103C8, STM32F103CB,
 STM32F303CC, STM32F303RE, STM32F429ZI, STM32F105RBT6, STM32F107VCT6, STM32L433CCT6, STM32F070CBT6,
 STM32G431RB, STM32F411CEUx, STM32F405RG, STM32F446RE, STM32F373CC, STM32L053R8.
-See hardware.md for details.
+See [hardware.md](hardware.md) for details.
 
 ### Implemented definitions for classes ###
 1. USB HID based on [Device Class Definition for Human Interface Devices (HID) Version 1.11](https://www.usb.org/sites/default/files/documents/hid1_11.pdf)