diff --git a/.devcontainer/README.md b/.devcontainer/README.md
index b48a4e09..1020eb75 100644
--- a/.devcontainer/README.md
+++ b/.devcontainer/README.md
@@ -28,3 +28,12 @@ export KAGGLE_KEY=
   1. Remotely connect to the machine and open the `RD-Agent` folder in VS Code.
   2. Press `Ctrl+Shift+P` (or `Cmd+Shift+P` on Mac), type and select **"Dev Containers: Reopen in Container"**.
 
+
+
+# How to grade your submission in the DevContainer
+
+1. save your submission file in `./sumission.csv`
+
+2. Run evaluation
+DS_COMPETITION=<your competition name>
+conda run -n mlebench  mlebench grade-sample submission.csv $DS_COMPETITION --data-dir /tmp/kaggle/zip_files/
\ No newline at end of file
diff --git a/.devcontainer/devcontainer.json b/.devcontainer/devcontainer.json
index 44ab731a..80e19d8e 100644
--- a/.devcontainer/devcontainer.json
+++ b/.devcontainer/devcontainer.json
@@ -11,7 +11,7 @@
     "terminal.integrated.shell.linux": "/bin/bash"
   },
   "mounts": [
-    "source=/home/shared/RD-Agent/kaggle,target=/home/shared/RD-Agent/kaggle,type=bind,consistency=cached,readonly"
+    "source=/home/shared/RD-Agent/kaggle,target=/tmp/kaggle,type=bind,consistency=cached,readonly"
   ],
   "extensions": [
     "ms-python.python",