small README improvement

WhoopInc · May 12, 2016 · 5aebe1c · 5aebe1c
1 parent 4d70a7d
commit 5aebe1c
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/README.md b/README.md
@@ -90,4 +90,4 @@ All metrics share the same signature:
 * Tags are given as a map. The keys and values can be atoms, strings, or numbers.
 
 
-Metric name and value are required. Sample rate defaults to 1.0. Tags defaults to an empty map.
+Metric name and value are required. Sample rate defaults to 1.0. Tags defaults to an empty tag-set, but the value of `GLOBAL_TAGS` (which also defaults to an empty tag-set) is always merged with the passed tags.