I like this article's response to the question of how to spell resume:
which gives the basis for each common version, and the best rule of thumb: be consistent or be wrong for sure!
Whether the accents are appropriate or not I wouldn't recommend you use them. I've submitted several resumes thru job sites and just found out that they convert e's with accents over them to i's. So everywhere I spelled resume with accents came out as risumi. That looks really dumb when you're applying for professional level positions!!
RE: How to spell resume with proper accent marks
After kicking drugs, girl's life forever changed
"They don't know how to spell resume, let alone write one," Slack said. "Who is going to hire them?"