Tweak docs for future reference

Author: connorjkennedy

README.md

@@ -118,8 +118,7 @@ mqtt:
       device_class: gas
       unit_of_measurement: 'ft³'
       unique_id: total_gas_consumption_cf
-      state_class: measurement
-      last_reset_value_template: '1970-01-01T00:00:00+00:00'
+      state_class: total_increasing
 ```
 
 ## Testing

amrscm2mqtt

@@ -1,6 +1,6 @@
 #!/usr/bin/env python3
 '''
-Runs rtlamr to watch for IDM broadcasts from power meter. If meter id
+Runs rtlamr to watch for SCM broadcasts from utility meters. If meter id
 is in the list, usage is sent to 'readings/{meter id}/meter_reading'
 topic on the MQTT broker specified in settings.