fix Hebrew typos and improve Hebrew translations in a few places

[Moshe]

I want to fix typos and improve Hebrew translations in a few places

Also i think it is better to add "rtl" directives to some text sections - in a way it will make Hebrew(and other rtl-languages)reader to feel more comfortable

example:

[ ] Yes (Assistance is provided if you need help submitting a pull request)
[V ] No