Update README.rst

Author: JohnGarbutt

README.rst

@@ -39,9 +39,9 @@ you can run the exporter doing something like this:
 Or just run via docker or similar:::
 
    docker run -d --name os_capacity \
-      --mount type=bind,source=/etc/openstack/,target=/etc/openstack/ \
-     --env OS_CLOUD=openstack --env OS_CLIENT_CONFIG_FILE=/etc/openstack/mycloud.yaml \
-     -p 9000:9000 ghcr.io/stackhpc/os-capacity:master
+     --mount type=bind,source=/etc/kolla/os-capacity/,target=/etc/openstack \
+     --env OS_CLOUD=openstack --env OS_CLIENT_CONFIG_FILE=/etc/openstack/clouds.yaml \
+     -p 9000:9000 ghcr.io/stackhpc/os-capacity:234330f
    curl localhost:9000
 
 Here is some example output from the exporter:::