Add to nightly link

templates/package.hamlet

@@ -31,6 +31,12 @@ $newline never
                  <a href=@{SnapshotR (liSnapName li) StackageHomeR}>
                     #{prettyName (liSnapName li) (liGhc li)} (#{liVersion li})
 
+            $if null latests
+                <p .add-to-nightly>
+                    This package is not currently in any snapshots. If you're interested in using it, we recommend #
+                    <a href="https://github.com/fpco/stackage/#get-your-package-included">adding it to Stackage Nightly
+                    . Doing so will make builds more reliable, and allow stackage.org to host generated Haddocks.
+
     <div .row>
         <div .span12>
             <div .social>

templates/package.lucius

@@ -245,3 +245,9 @@ div.plain-text {
     }
   }
 }
+
+.add-to-nightly {
+  border: 1px solid black;
+  padding: 0.5em;
+  background: #eef;
+}