remove misleading notation from the adaptive sampler reference config

Author: ivantopo

core/kamon-core/src/main/resources/reference.conf

@@ -209,7 +209,7 @@ kamon {
       # decisions.
       throughput = 600
 
-      # Groups allow to override the default balacing behavior for a particular subset of operations in this
+      # Groups allow to override the default balancing behavior for a particular subset of operations in this
       # application. With groups, users can guarantee that certain operations will always be sampled, never sampled, or
       # provide minimum and/or maximum sampled traces throughput goals.
       #
@@ -232,7 +232,7 @@ kamon {
       # For example, if you wanted to ensure that health check operations are never sampled you could include
       #
       #   health-checks {
-      #     operations = ["GET \/status"]
+      #     operations = ["/status", "/health"]
       #
       #     rules {
       #       sample = never