docs: update readme.

Author: PttCodingMan

README.md

@@ -130,7 +130,7 @@ In the editor, type `/` to open the slash menu. You can filter by typing after t
 ### Project Structure
 
 ```
-just-wiki/
+justwiki/
 ├── backend/          # FastAPI REST API
 │   └── app/
 │       ├── main.py

README.zh.md

@@ -130,7 +130,7 @@ docker-compose up -d
 ### 專案結構
 
 ```
-just-wiki/
+justwiki/
 ├── backend/          # FastAPI REST API
 │   └── app/
 │       ├── main.py

docker-compose.yml

@@ -1,6 +1,6 @@
 services:
   backend:
-    image: ghcr.io/pttcodingman/just-wiki/backend:main
+    image: ghcr.io/pttcodingman/justwiki/backend:main
     build: ./backend
     ports:
       - "8000:8000"
@@ -10,7 +10,7 @@ services:
     restart: unless-stopped
 
   frontend:
-    image: ghcr.io/pttcodingman/just-wiki/frontend:main
+    image: ghcr.io/pttcodingman/justwiki/frontend:main
     build: ./frontend
     ports:
       - "3000:3000"