internal/frontend: change license policy title

basepage.HTMLTitle is changed from "Licenses" to "License Policy" for
consistency with the templates.

In a future CL, basePage.HTMLTitle should be removed.

Change-Id: If20e8e42518ca2ef957023c91905dee626ed7d96
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/326770
Trust: Julie Qiu <julie@golang.org>
Reviewed-by: Jamal Carvalho <jamal@golang.org>
Reviewed-by: Jonathan Amsterdam <jba@google.com>
diff --git a/internal/frontend/server.go b/internal/frontend/server.go
index fc26431..c994c90 100644
--- a/internal/frontend/server.go
+++ b/internal/frontend/server.go
@@ -286,7 +286,7 @@
 	lics := licenses.AcceptedLicenses()
 	return http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		page := licensePolicyPage{
-			basePage:         s.newBasePage(r, "Licenses"),
+			basePage:         s.newBasePage(r, "License Policy"),
 			LicenseFileNames: licenses.FileNames,
 			LicenseTypes:     lics,
 		}