Empty HTML template from tutorial otuput

[schneems]

Un-named template being emitted from the CNB tutorial https://github.com/heroku/buildpacks/blob/8c6a4a86aa6ccaff6926add4761e79601dfa4851/docs/go/README.md:

$ docker run -it --rm --env PORT=5006 -p 5006:5006 my-image-name
[GIN-debug] [WARNING] Running in "debug" mode. Switch to "release" mode in production.
 - using env:	export GIN_MODE=release
 - using code:	gin.SetMode(gin.ReleaseMode)

[GIN-debug] Loaded HTML Templates (4): 
	- index.tmpl.html
	- nav.tmpl.html
	- 
	- header.tmpl.html

[GIN-debug] GET    /static/*filepath         --> github.com/gin-gonic/gin.(*RouterGroup).createStaticHandler.func1 (2 handlers)
[GIN-debug] HEAD   /static/*filepath         --> github.com/gin-gonic/gin.(*RouterGroup).createStaticHandler.func1 (2 handlers)
[GIN-debug] GET    /                         --> main.main.func1 (2 handlers)
[GIN-debug] [WARNING] You trusted all proxies, this is NOT safe. We recommend you to set a value.
Please check https://pkg.go.dev/github.com/gin-gonic/gin#readme-don-t-trust-all-proxies for details.
[GIN-debug] Listening and serving HTTP on :5006

Specifically this:

	- index.tmpl.html
	- nav.tmpl.html
	- 
	- header.tmpl.html

This output is unexpected to me and might be to other users. Do we know where that's coming from? Can we suppress it or otherwise provide a name for it?