_content/blog/vuln: point users to govulncheck json flag

This is done instead of pointing to vulncheck, decision on which still
has to be made.

Change-Id: I0ea010c5a9ee7107e8567ebf7b9b0b3371d5aca8
Reviewed-on: https://go-review.googlesource.com/c/website/+/459355
Run-TryBot: Zvonimir Pavlinovic <zpavlinovic@google.com>
Reviewed-by: Julie Qiu <julie@golang.org>
Reviewed-by: Heschi Kreinick <heschi@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
diff --git a/_content/blog/vuln.md b/_content/blog/vuln.md
index ec3ff49..49b1e22 100644
--- a/_content/blog/vuln.md
+++ b/_content/blog/vuln.md
@@ -69,15 +69,14 @@
 while we gather feedback from users.
 In the long term, we plan to integrate the govulncheck tool into the main Go distribution.
 
-To directly integrate vulnerability checking into other tools and processes,
-the [vulncheck](https://pkg.go.dev/golang.org/x/vuln/vulncheck) package exports govulncheck’s
-functionality as a Go API.
-
 ### Integrations
 
 It’s always better to learn about vulnerabilities as early as possible
-in the development and deployment process.
-To that end, we have integrated vulnerability detection into existing Go tools and services,
+in the development and deployment process. To integrate vulnerability
+checking into your own tools and processes, use
+[govulncheck -json](https://pkg.go.dev/golang.org/x/vuln/cmd/govulncheck#hdr-Flags).
+
+We have integrated vulnerability detection into existing Go tools and services,
 such as the [Go package discovery site](https://pkg.go.dev).
 For example, [this page](https://pkg.go.dev/golang.org/x/text?tab=versions)
 shows the known vulnerabilities in each version of golang.org/x/text.