chore: comments added

cookiecutter-xblock/{{cookiecutter.repo_name}}/Dockerfile

@@ -1,11 +1,27 @@
+# Use the official Open edX XBlock SDK image as the base image
 FROM openedx/xblock-sdk
+
+# Create the directory for the repository
 RUN mkdir -p /usr/local/src/{{cookiecutter.repo_name}}
+
+# Set the created directory as a Docker volume
 VOLUME ["/usr/local/src/{{cookiecutter.repo_name}}"]
-RUN apt-get update && apt-get install -y gettext
-RUN echo "pip install -r /usr/local/src/{{cookiecutter.repo_name}}/requirements.txt" >> /usr/local/src/xblock-sdk/install_and_run_xblock.sh
-RUN echo "pip install -e /usr/local/src/{{cookiecutter.repo_name}}" >> /usr/local/src/xblock-sdk/install_and_run_xblock.sh
-RUN echo "cd /usr/local/src/{{cookiecutter.repo_name}} && make compile_translations && cd /usr/local/src/xblock-sdk" >> /usr/local/src/xblock-sdk/install_and_run_xblock.sh
-RUN echo "exec python /usr/local/src/xblock-sdk/manage.py \"\$@\"" >> /usr/local/src/xblock-sdk/install_and_run_xblock.sh
+
+# Update the package list and install gettext
+RUN apt-get update && \
+    apt-get install -y gettext
+
+# Prepare the install_and_run_xblock script by appending necessary commands
+RUN echo "pip install -r /usr/local/src/{{cookiecutter.repo_name}}/requirements.txt" >> /usr/local/src/xblock-sdk/install_and_run_xblock.sh && \
+    echo "pip install -e /usr/local/src/{{cookiecutter.repo_name}}" >> /usr/local/src/xblock-sdk/install_and_run_xblock.sh && \
+    echo "cd /usr/local/src/{{cookiecutter.repo_name}} && make compile_translations && cd /usr/local/src/xblock-sdk" >> /usr/local/src/xblock-sdk/install_and_run_xblock.sh && \
+    echo "exec python /usr/local/src/xblock-sdk/manage.py \"\$@\"" >> /usr/local/src/xblock-sdk/install_and_run_xblock.sh
+
+# Make the install_and_run_xblock script executable
 RUN chmod +x /usr/local/src/xblock-sdk/install_and_run_xblock.sh
+
+# Define the entrypoint to use the custom script
 ENTRYPOINT ["/bin/bash", "/usr/local/src/xblock-sdk/install_and_run_xblock.sh"]
+
+# Set the default command for the container
 CMD ["runserver", "0.0.0.0:8000"]