docs: add owasp link on insecure temporary files (#309)

Author: n0toose

src/lib.rs

@@ -29,6 +29,9 @@
 //! `tempfile` doesn't rely on file paths so this isn't an issue. However, `NamedTempFile` does
 //! rely on file paths for _some_ operations. See the security documentation on
 //! the `NamedTempFile` type for more information.
+//! 
+//! The OWASP Foundation provides a resource on vulnerabilities concerning insecure
+//! temporary files: https://owasp.org/www-community/vulnerabilities/Insecure_Temporary_File
 //!
 //! ## Early drop pitfall
 //!