Add virus scanning example to documentation

[SonoTommy]

Hi, formidable is great for handling multipart uploads. One gap
in the ecosystem is documentation around scanning uploaded files
for malware before saving them.

I built pompelmi (https://github.com/pompelmi/pompelmi) — a
zero-dependency ClamAV wrapper for Node.js that integrates cleanly
with formidable's streaming API. Would a security section in the
docs be welcome? Happy to open a PR.

[tunnckoCore]

@SonoTommy heya, i'm in a major refactor, and yeah will include some security tips. Will check pompelmi when i get some more time, looks good.

[GrosSacASac]

Are you planning to run uploaded files as executable ?

I would say , handle uploaded files like any other user input. It can be anything and as long as you don't evaluate it as code there is no danger.

See also SQL injections.