A bug fix

Dockerfile

@@ -1,8 +1,8 @@
-FROM python:3.9.0-alpine
+FROM python:3.10.0-alpine
 
 ENV PIP_INDEX_URL=https://pypi.tuna.tsinghua.edu.cn/simple
 RUN pip install --upgrade pip
-RUN pip install mkdocs-material==9.4.1 mkdocs-glightbox
+RUN pip install mkdocs-material==9.5.2 mkdocs-glightbox
 
 WORKDIR /hello-algo
 
@@ -15,6 +15,6 @@ COPY mkdocs-en.yml ./mkdocs-en.yml
 RUN mkdocs build -f mkdocs.yml
 RUN mkdocs build -f mkdocs-en.yml
 
-WORKDIR /app/site
+WORKDIR /hello-algo/site
 EXPOSE 8000
 CMD ["python", "-m", "http.server", "8000"]