change graph to mermade and remove draw.io

[djh1997]

flowchart TD
A(start) --> B{while
running!=2}
B -->|flase| C(stop)
B -->|true| D{while running ==1}
D -->|false| E(sleep)
E --> B
D -->|true| F{if mode=manual}
F -->|yes| G[[update lcd]]