Document removal of _total from metric name.

brian-brazil · brian-brazil · commit c25dd5f9101f · 2018-09-07T17:17:03.000+01:00
It's only in the timeseries name now.

Signed-off-by: Brian Brazil &lt;brian.brazil@robustperception.io&gt;
diff --git a/README.md b/README.md
@@ -72,6 +72,11 @@ c.inc()     # Increment by 1
 c.inc(1.6)  # Increment by given value
 ```
 
+If there is a suffix of `_total` on the metric name, it will be removed. When
+exposing the time series for counter, a `_total` suffix will be added. This is
+for compatibility between OpenMetrics and the Prometheus text format, as OpenMetrics
+requires the `_total` suffix.
+
 There are utilities to count exceptions raised:
 
 ```python
