diff --git a/src/main/resources/data/oc2/file_systems/README.md b/src/main/resources/data/oc2/file_systems/README.md
index e5bc13a4..7aee9c6a 100644
--- a/src/main/resources/data/oc2/file_systems/README.md
+++ b/src/main/resources/data/oc2/file_systems/README.md
@@ -1,7 +1,7 @@
 It is possible to provide additional read-only data to virtual machines using data packs.
 
-For this to work, a descriptor file must be placed in the `file_systems` directory. The descriptor must be a JSON file
-with a name ending in `.fs.json`. The file must have the following format:
+For this to work, a descriptor file must be placed in the `file_systems` directory. The descriptor must be a JSON file.
+The file must have the following format:
 
 ```json
 {
@@ -10,24 +10,16 @@ with a name ending in `.fs.json`. The file must have the following format:
 }
 ```
 
-For example, to provide additional files for the layered 9pFS exposed to virtual machines, the type must be `virtio-9p`
-and the extra field `location` must be provided, containing a resource location pointing to the root of the path to
+For example, to provide additional files for the layered 9pFS exposed to virtual machines, the type must be `layer` and
+the extra field `location` must be provided, containing a resource location pointing to the ZIP containing the layer to
 expose. Example:
 
 ```json
 {
-    "type": "virtio-9p",
-    "location": "oc2:file_systems/scripts"
+    "type": "layer",
+    "location": "oc2:file_systems/scripts.zip"
 }
 ```
 
-All files in paths exposed this way will be flagged non-executable by default. To mark a file executable, place
-a `.mcmeta` file with the following content next to:
-
-```json
-{
-    "attributes": {
-        "is_executable": true
-    }
-}
-```
+An optional `order` field of type integer may be provided to control the order in which layers are used. This allows
+overriding files in other layers, if necessary.
\ No newline at end of file