Move WORKDIR directive in Docker examples (#6652)

docs/guides/integration/docker.md

@@ -57,9 +57,9 @@ If you're using uv to manage your project, you can copy it into the image and in
 ```dockerfile title="Dockerfile"
 # Copy the project into the image
 ADD . /app
-WORKDIR /app
 
 # Sync the project into a new environment, using the frozen lockfile
+WORKDIR /app
 RUN uv sync --frozen
 ```
 
@@ -228,12 +228,14 @@ a big time saver.
 FROM python:3.12-slim
 COPY --from=ghcr.io/astral-sh/uv:latest /uv /bin/uv
 
+# Change the working directory to the `app` directory
+WORKDIR /app
+
 # Copy the lockfile and `pyproject.toml` into the image
 ADD uv.lock /app/uv.lock
 ADD pyproject.toml /app/pyproject.toml
 
 # Install dependencies
-WORKDIR /app
 RUN uv sync --frozen --no-install-project
 
 # Copy the project into the image