README: Version selection guide

victormlourenco · Oct 2, 2019 · 4cced9b · 4cced9b
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@@ -7,6 +7,9 @@ by HashiCorp. The goal of HCL is to build a structured configuration language
 that is both human and machine friendly for use with command-line tools, but
 specifically targeted towards DevOps tools, servers, etc.
 
+> **NOTE:** This is major version 1 of HCL, which is now in maintenence mode only. We strongly recommend that new projects use HCL 2 instead. For more information, see
+> [our version selection guide](https://github.com/golang/go/wiki/Version-Selection).
+
 HCL is also fully JSON compatible. That is, JSON can be used as completely
 valid input to a system expecting HCL. This helps makes systems
 interoperable with other systems.