feat: make metrics struct type safe (#185)

* feat: Use type safe metrics struct * doc: add comment * Update doc.go * refactor: use point receivers * test: fix tests * test: fix tests
DoNewsCode · Aug 31, 2021 · baa2923 · baa2923
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diff --git a/observability/doc.go b/observability/doc.go
@@ -1,6 +1,5 @@
 /*
-Package observability provides a tracer and a histogram to measure all incoming
-requests to the system.
+Package observability provides a tracer and a set of perdefined metrics to measure critical system stats.
 
 Introduction