Update citation help (tests)

Change-Id: Ia7dd14a0931cb4c7e56bdfe558824e909c183f03
diff --git a/t/page.t b/t/page.t
index 0ebd0fa..11bc8e1 100644
--- a/t/page.t
+++ b/t/page.t
@@ -45,7 +45,7 @@
       de_howToCite => 'Zitierhilfe',
       en_recentCorpusPub => 'Recent publications to refer to DeReKo as linguistic research data',
       de_recentCorpusPub => 'Neuere Publikationen zu DeReKo als linguistische Forschungsdatengrundlage',
-      en_recentToolPub => 'Recent publications to refer to KorAP as a tool for research',
+      en_recentToolPub => 'Recent publications to refer to KorAP as a research tool',
       de_recentToolPub => 'Neuere Publikationen zu KorAP als Forschungswerkzeug',
     }
   },