Document the minimum supported version of Go
Some tests use Go modules, and the rest of the project will at some
point in the future.
@@ -62,8 +62,8 @@ The setup target ensures the presence of:
* `GOPATH` and `PATH` as described in the prerequisites
* EPEL yum repository
-* golang compiler
-* `dep` dependency manager
+* [`go`](https://golang.org/) compiler version 1.13+
+* [`dep`](https://golang.github.io/dep/) dependency manager
* NSQ messaging binaries
* `docker` container tool
* `buildah` OCI image building tool
