Update README.md

README.md

@@ -5,7 +5,18 @@ Clone this archive, build and run the image. Pass in your API_KEY and map the ou
 git clone https://gitea.iosull.com/iosullivan/cta-archive
 cd cta-archive
 docker build -t cta-archive .
-docker run cta-archive --name cta-archive -d -e API_KEY=<APIKey> -v <outputdir>/usr/cta-archive/output/
+docker run --name cta-archive -d -e API_KEY=<APIKey> -v <outputdir>:/usr/cta-archive/output/ cta-archive 
 ```
 
-By default, the script runs every 5 minutes to write json file to the <outputdir> above. This can be modified by updating the cronjob file.
+## Configuration
+
+By default, the script runs every 5 minutes to write json file to the <outputdir> above. This can be modified by updating the following line in the Dockerfile:
+```
+RUN echo ' */5 * * * * /usr/local/bin/python3 /usr/cta-archive/archive.py ' >> /usr/cta-archive/cronjob
+
+# Where 5 indicates every 5th minute. 
+```
+
+## Notes
+
+This script runs as root within the container. It probably shouldn't.