Set /app permissions in the Dockerfile

Add a note in readme to be careful of permissions with --reload

Dockerfile

@@ -108,7 +108,7 @@ RUN apt-get update -qq \
 # Install ArchiveBox Python package and its dependencies
 WORKDIR "$CODE_DIR"
 ADD . "$CODE_DIR"
-RUN pip install -e .
+RUN chown -R root:root . && chmod a+rX -R . && pip install -e .
 
 # Setup ArchiveBox runtime config
 WORKDIR "$DATA_DIR"

README.md

@@ -913,6 +913,7 @@ docker run -it -p 8000:8000 \
     archivebox server 0.0.0.0:8000 --debug --reload
 
 # (remove the --reload flag and add the --nothreading flag when profiling with the django debug toolbar)
+# When using --reload, make sure any files you create can be read by the user in the Docker container, eg with 'chmod a+rX'.
 ```
 
 </details>