typo

src/middleware/translations/en.json

@@ -83,7 +83,7 @@
             "upload_has": "Your upload has:",
             "columns_rows": "{{cols}} column(s) and {{rows}} row(s)",
             "heading_summary": "Data table summary",
-            "upload_summary": "There are {{cols}} columns and {{rows}} rows in the data table. {{ignored}} column(s) in the CSV upload has been ignored.",
+            "upload_summary": "There are {{cols}} columns and {{rows}} rows in the data table. {{ignored}} column(s) in the CSV upload have been ignored.",
             "showing_rows": "Showing rows {{start}} – {{end}} of {{total}}",
             "columns": "columns",
             "column": "column",