change file structure

.DS_Store

documentation/.gitkeep

families/.DS_Store

families/e5/8e5_datasheet.pdf

families/e5/8e5_hello_world.c

families/e5/8e5_hello_world_layout.png

families/e5/8e5_hello_world_outline.png

families/e5/8e5_hello_world_traces.png

families/e5/8e5_pinout.jpg

families/e5/8e5_usart_hello_world.make

families/e5/README.md

families/e5/serial.h

functionality/adc/adc.8E5.board.jpg

functionality/adc/adc.8E5.c

functionality/adc/adc.8E5.interior.png

functionality/adc/adc.8E5.layout.png

functionality/adc/adc.8E5.make

functionality/adc/adc.8E5.traces.png

functionality/adc/adc.h

functionality/adc/load-cell-small.mp4