Documentation: Add note that trash dir must exist (#4608)

diff --git a/docs/configuration.md b/docs/configuration.md
index 88c8a5094ea3d7632cfec9fa0181e5c6c7ddc300..ad915e6bb9f6307da04c2f3bb2e044dbc0892d3a 100644 (file)
--- a/docs/configuration.md
+++ b/docs/configuration.md
@@ -221,6 +221,8 @@ directory.
     inside docker, ensure that this path is within a permanent volume
     (such as "../media/trash") so it won't get lost on upgrades.
 
+    Note that the directory must exist prior to using this setting.
+
     Defaults to empty (i.e. really delete documents).
 
 #### [`PAPERLESS_MEDIA_ROOT=<path>`](#PAPERLESS_MEDIA_ROOT) {#PAPERLESS_MEDIA_ROOT}