Add source URL comment to "Check Certificates" workflow

per1234 · per1234 · commit 3bdd07d8074c · 2021-08-16T00:46:43.000-07:00
This will make it easier for the maintainers to sync fixes and improvements in either direction between the upstream
"template" workflow and its installation in this repository.
diff --git a/.github/workflows/check-certificates.yml b/.github/workflows/check-certificates.yml
@@ -1,3 +1,4 @@
+# Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/check-certificates.md
 name: Check Certificates
 
 # See: https://docs.github.com/en/actions/reference/events-that-trigger-workflows

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,4 @@`
	`1`	`+# Source: https://github.com/arduino/tooling-project-assets/blob/main/workflow-templates/check-certificates.md`
`1`	`2`	`name: Check Certificates`
`2`	`3`
`3`	`4`	`# See: https://docs.github.com/en/actions/reference/events-that-trigger-workflows`