docs: add deprecation notice

.github/workflows/ci.yml

@@ -169,7 +169,7 @@ jobs:
         with:
           push: ${{ github.ref == 'refs/heads/main' }}
           tags: |
-            ghcr.io/otter-sec/rctf:${{ github.sha }}
-            ghcr.io/otter-sec/rctf:${{ github.ref_name }}
-          cache-from: type=registry,ref=ghcr.io/otter-sec/rctf:main
+            ghcr.io/otter-sec/rctf-legacy:${{ github.sha }}
+            ghcr.io/otter-sec/rctf-legacy:${{ github.ref_name }}
+          cache-from: type=registry,ref=ghcr.io/otter-sec/rctf-legacy:main
           cache-to: type=inline

README.md

@@ -1,3 +1,7 @@
+## Deprecation notice
+
+**This version is no longer maintained, please submit issues and feature requests to [otter-sec/rctf](https://github.com/otter-sec/rctf).**
+
 <picture>
   <source srcset="https://raw.githubusercontent.com/otter-sec/rctf/main/docs/content/assets/rctf-logotype-dark-1024.png" media="(prefers-color-scheme: light)">
   <img src="https://raw.githubusercontent.com/otter-sec/rctf/main/docs/content/assets/rctf-logotype-light-1024.png" width="350px" alt="rCTF logo">

docker-compose.yml

@@ -1,6 +1,6 @@
 services:
   rctf:
-    image: ghcr.io/otter-sec/rctf:${RCTF_GIT_REF}
+    image: ghcr.io/otter-sec/rctf-legacy:${RCTF_GIT_REF}
     restart: always
     ports:
       - '127.0.0.1:8080:80'