changed command to use /run/udev in read-only mode.

README.md

@@ -53,13 +53,13 @@ If you're using Docker, getting started is as simple as running the following co
 ```bash
 
 docker run -it --rm -p 8080:8080 \
--v /run:/run \
+-v /run/udev:/run/udev:ro \
 -v /dev/disk:/dev/disk \
 --name scrutiny \
 --privileged analogj/scrutiny
 ```
 
-- `/run` and `/dev/disk` are necessary to provide the Scrutiny application metadata about your drives
+- `/run/udev` and `/dev/disk` are necessary to provide the Scrutiny collector with access to your drive metadata.
 - `--privileged` is required to ensure that your hard disk devices are accessible within the container (this will be changed in a future release)
 - `analogj/scrutiny` is a omnibus image, containing both the webapp server (frontend & api) as well as the S.M.A.R.T metric collector. (dedicated images will be available in a future release)
 - If you do not have access to the `analogj/scrutiny` docker image, please contact me using the email address in my profile: [@analogj](https://github.com/AnalogJ/) Please include your Github username and when you sponsored me.  (eventually both images and source code will be open sourced)