Improve documentation

ehmicky · ehmicky · commit d6dc8872921f · 2019-04-02T11:26:49.000+02:00
diff --git a/docs/API.md b/docs/API.md
@@ -216,7 +216,7 @@ logProcessErrors({ colors: false })
 _Type_: `Error`
 
 The [`log`](#log) and [`level`](#level) options receive as argument an `error`
-object.
+instance.
 
 #### error.name
 
