Update readme.md to link to the most recent spec

Deprecate the old spec

Author: hatchan

README.md

@@ -4,7 +4,7 @@
 
 This repo contains resources shared between all of the [Autometrics](https://github.com/autometrics-dev) implementations.
 
-## [Autometrics Specification](./SPEC.md)
+## [Autometrics Specification](./specs/autometrics_v1.0.0.md)
 
 ## Dashboards
 

SPEC.md

@@ -1,5 +1,7 @@
 # Autometrics Specification <!-- omit in toc -->
 
+** This spec is deprecated please see the new [versioned specs](./specs). **
+
 This is a work in progress specification for Autometrics.
 
 It aims to describe the full feature set of the Autometrics libraries, but it may have important details missing. We will attempt to update this document to describe the expectations across all of the language implementations.