Update README to reflect change in temperature base unit

README.md

@@ -43,9 +43,9 @@ Viewed from the exporter:
 # HELP edgetpu_num_devices Number of EdgeTPU devices
 # TYPE edgetpu_num_devices gauge
 edgetpu_num_devices 1
-# HELP edgetpu_temperature EdgeTPU device temperature in Celsius
-# TYPE edgetpu_temperature gauge
-edgetpu_temperature{name="apex_0"} 49.3
+# HELP edgetpu_temperature_celsius EdgeTPU device temperature in Celsius
+# TYPE edgetpu_temperature_celsius gauge
+edgetpu_temperature_celsius{name="apex_0"} 49.3
 ```
 
 ## Docker Images
@@ -62,4 +62,4 @@ Please file feature requests and bugs in the [issue tracker][tracker].
 version of which can be found in the LICENSE file included in the distribution.
 
 [tracker]: https://github.com/adaptant-labs/edgetpu-exporter/issues
-[adaptant/edgetpu-exporter]: https://hub.docker.com/repository/docker/adaptant/edgetpu-exporter
+[adaptant/edgetpu-exporter]: https://hub.docker.com/repository/docker/adaptant/edgetpu-exporter