More than ever, people like engaging writing. This includes the people you’re selling to. So more than ever, your writing needs to be interesting, not functional.
One way you can do this is to read it out loud. If you can’t bear to do that, get your computer to read it back to you. Windows and Mac OS can both do this – look it up if you don’t know how. Do not read the document as it’s spoken back to you – close your eyes and just listen. If it sounds boring, it is boring. Start again.