Changed documentation for glob paths.

docs/types.md

@@ -784,10 +784,9 @@ All types of FileSpecs share some common fields:
 ### FileSpec -- Path
 
 A FileSpec with `type` equal to `path` points to an absolute or relative path accessible from the current machine.
-The path may also include a glob pattern to target multiple files or directories.
-For paths that match multiple dirents, the dirents will be copied into `dest` only if `dest` is a directory.
-If `dest` does not exist, it will be automatically created as a directory.
-Attempting to copy multiple dirents into `dest` if `dest` is an existing file will result in an error.
+The path may include a glob pattern to target multiple files or directories.
+Multiple dirents are copied into `dest` if it's a directory (or will be created as a directory if it doesn’t exist).
+An error occurs if multiple dirents try to get copied into an existing file.
 When a relative path is specified, additional context is required to know the relative base.
 For example, a FileSpec in an assignment config is relative to the assignment directory (the directory where the `assignment.json` file lives).