diff --git a/README.md b/README.md
index 2e13310..78cff4c 100644
--- a/README.md
+++ b/README.md
@@ -4,7 +4,7 @@
 [![Binder](https://mybinder.org/badge_logo.svg)](https://mybinder.org/v2/gh/MarchLiu/litchi/main?urlpath=lab)
 
 
-Litchi is a ai client for jupyter lab
+Litchi is an AI extension for jupyter lab
 
 ## Requirements
 
diff --git a/demo.ipynb b/demo.ipynb
index 93c1fa9..6d70ac1 100644
--- a/demo.ipynb
+++ b/demo.ipynb
@@ -12,36 +12,6 @@
     "Tell me somthing about lichi."
    ]
   },
-  {
-   "cell_type": "code",
-   "execution_count": 2,
-   "id": "c4c74995-0818-460b-a923-3cb0e4d62003",
-   "metadata": {},
-   "outputs": [
-    {
-     "name": "stdout",
-     "output_type": "stream",
-     "text": [
-      "  .-''-.       \n",
-      " /  .-.  \\     \n",
-      "(  /   \\  )    \n",
-      "  \\   /  /    \n",
-      "   '-'  '-'    \n",
-      "      |         \n",
-      "      |         \n"
-     ]
-    }
-   ],
-   "source": [
-    "print(\"  .-''-.       \")\n",
-    "print(\" /  .-.  \\\\     \")\n",
-    "print(\"(  /   \\\\  )    \")\n",
-    "print(\"  \\\\   /  /    \")\n",
-    "print(\"   '-'  '-'    \")\n",
-    "print(\"      |         \")\n",
-    "print(\"      |         \")"
-   ]
-  },
   {
    "cell_type": "markdown",
    "id": "2b015bf0-a303-4aaa-a8da-848f62970e3e",