updated readme
updated readme

mik4el/gadget_board,mik4el/gadget_board,mik4el/gadget-board,mik4el/gadget-board,mik4el/gadget-board,mik4el/gadget-board,mik4el/gadget_board,mik4el/gadget-board,mik4el/gadget_board,mik4el/gadget_board