Added comments to dockerfiles

frontend/Dockerfile

@@ -1,24 +1,30 @@
 FROM node:latest as build
 
+# Change to the project directory
 WORKDIR /usr/local/app
 
+# Copy the project files to the container
 COPY frontend /usr/local/app/
 
+# Install dependencies
 RUN npm install
 RUN npm run build
 
-RUN ls /usr/local/app/dist
-
 
 FROM nginx:latest
 
+# Copy the project files to the container
 COPY --from=build /usr/local/app/dist/aktienbot /usr/share/nginx/html
 
+# Copy configuration files
 COPY frontend/deploy/nginx.conf /etc/nginx
 COPY frontend/deploy deploy/
 
+# Change file permissions
 RUN chmod +x ./deploy/healthcheck.sh
 
+# set healthcheck
 HEALTHCHECK --interval=15s --timeout=2s CMD ["./deploy/healthcheck.sh"]
 
+# Expose webserver port
 EXPOSE 80