Correct main README
Add more information about the system requirements
Improve the synthesis script

The rerun.tcl script will work even when the project is already open,
i.e. it can be run immediately after create.tcl.
Add README for the hardware module
Remove load scripts

Load scripts can be regenerated, therefore, their are unnecessary.
Make the default behavior simple

Use the foreman video and do only one run.
Add the README for the software module