I'd recommend caution.
I've only had a few years' experience in genealogy work. Whenever I've gone "the extra mile" to purchase a death record, I've learned there's so much information you might NOT want it made public.
1. One death record we've commented on in WikiTree may -- or may not -- have indicated a suicide; "poisoned by phenyl" was the nearly illegible key phrase.
2. Do you REALLY want the cause of death visible to all? One of my ancestors died of "apoplexy" -- it turns out that meant a stroke. I've also seen "prostatitis", "disease of the brain", and "killed". This can be sensitive information.
3. Recent death certificates show names & addresses of parents, social security numbers, etc. Do you really want that data public?
There are ways to source a death record without sharing the image itself. There are many other types of records regarding your grandmother that will be helpful to other researchers.
4. When purchasing birth or death certificates,most states, towns, and counties require proof of YOUR identity -- you must furnish a copy of your driver's license, etc. In Florida, you must provide a copy of the person's probated will, along with a check and your photo id. These protections are in place so others will not take advantage (hopefully).
Please be conservative about this information; it may protect you or vulnerable family members, including children.