diff --git a/README.md b/README.md
index bc17e2a..0746353 100644
--- a/README.md
+++ b/README.md
@@ -22,3 +22,18 @@ The frontend can be used in all modern browsers. Internet Explorer is not suppor
 - Share the URL you received from last step
 
 After you've updated the binary you need to run the `--bootstrap` command once more to have the latest interface changes uploaded to your bucket.
+
+### Templating in `file-template`
+
+You can specify where in the bucket the file should be stored and how it should be named by passing the `--file-template` parameter. It takes a Go template with these placeholders:
+
+- `{{ .Ext }}` - The extension of the file (including the leading dot, i.e. `.txt`)
+- `{{ .FileName }}` - The original filename without changes (i.e. `my video.mp4`)
+- `{{ .Hash }}` - The SHA1 hash of the file content
+- `{{ .SafeFileName }}` - URL-safe version of the filename (i.e. `my-video.mp4`)
+- `{{ .UUID }}` - Random UUIDv4 to be used within the URL to make it hard to guess
+
+Examples:
+
+- `--file-template="file/{{ printf \"%.8s\" .Hash}}/{{ .SafeFileName }}"`
+- `--file-template="file/{{ printf \"%.8s\" .Hash}}/{{ .UUID }}{{ .Ext }}"`