* Update README.md
* UI improvements:
** Removed unnessecary checkboxes on main window
** Removed "Analyze" button for cities, dealers and agencies; Now the are analyzing on second window startup
** And other small fixes
* Code improvements:
** Typo fixes
** Added "dataIO.py" for interaction with configs (taken from "cog-creators/Red-DiscordBot" repo)
** Added dealers and agencies configs for both games (ATS, ETS2)
** Added "textEdited" signal for all edits on main window
Signed-off-by: JDM170 <30170278+JDM170@users.noreply.github.com>