Add example to readme

README.md

@@ -14,6 +14,30 @@ All images are exposed to `http://0.0.0.0:8000/all` in JSON format.
 
 If you want to get only images needing update, look at `http://0.0.0.0:8000/updates`.
 
+Here is a quick example of what you get on the `/all` endpoint (dockup don't have local tag because it is a locally built image):
+```json
+[
+  {
+    "name": "dockup",
+    "repo": "dockup-dockup",
+    "local_tag": "latest",
+    "remote_tag": null
+  },
+  {
+    "name": "wikijs-wiki-1",
+    "repo": "ghcr.io/requarks/wiki",
+    "local_tag": "2.5.307",
+    "remote_tag": "2.5.307"
+  },
+  {
+    "name": "wikijs-db-1",
+    "repo": "postgres",
+    "local_tag": "17.4-alpine",
+    "remote_tag": "17.5-alpine"
+  }
+]
+```
+
 # Requirements
 This program needs [regctl](https://github.com/regclient/regclient.git).
 It is shipped with container image by default, however you'll need to install it by yourself if running script directly.