Document where Docker places files

RaisinTen · RaisinTen · commit aba2207b2140 · 2022-08-31T18:36:22.000+05:30
Signed-off-by: Darshan Sen &lt;raisinten@gmail.com&gt;
diff --git a/docs/virtual-file-system-requirements.md b/docs/virtual-file-system-requirements.md
@@ -48,7 +48,9 @@ paths that cannot be used by existing files.
 
 Pkg uses [`/snapshot`](https://github.com/vercel/pkg#snapshot-filesystem) as the
 prefix for all the embedded files. This is confusing if `/snapshot` is an
-existing directory on the file system.
+existing directory on the file system. Docker workflows routinely copy files to,
+and run things at, the root of the filesystem, so following that approach too
+would run into the same problem.
 
 Boxednode allows users to enter a [namespace](https://github.com/mongodb-js/boxednode/blob/6326e3277469e8cfe593616a0ed152600a5f9045/README.md?plain=1#L69-L72)
 and uses it like so:
