static/frontend/vuln: pluralize list page breadcrumb

Change-Id: I7023fec64a208b55aebfc3c2bd795ba74da6b702
Reviewed-on: https://go-review.googlesource.com/c/pkgsite/+/387294
Trust: Jamal Carvalho <jamal@golang.org>
Run-TryBot: Jamal Carvalho <jamal@golang.org>
TryBot-Result: kokoro <noreply+kokoro@google.com>
Reviewed-by: Julie Qiu <julie@golang.org>
diff --git a/static/frontend/vuln/entry/entry.tmpl b/static/frontend/vuln/entry/entry.tmpl
index a0acbb0..33c000f 100644
--- a/static/frontend/vuln/entry/entry.tmpl
+++ b/static/frontend/vuln/entry/entry.tmpl
@@ -16,7 +16,7 @@
   <nav class="go-Breadcrumb" aria-label="Breadcrumb">
     <ol>
       <li>
-        <a href="/vuln/list" data-gtmc="breadcrumb link">Vulnerability Report</a>
+        <a href="/vuln/list" data-gtmc="breadcrumb link">Vulnerability Reports</a>
       </li>
       <li>
         <a href="#" data-gtmc="breadcrumb link" aria-current="location">{{.Entry.ID}}</a>