fix: add missing edition table column

php/semesterapparat.php

@@ -139,6 +139,7 @@
             row.innerHTML = `
                 <td><input type="text" name="authorname[]" required></td>
                 <td><input type="text" name="year[]" required></td>
+                <td><input type="text" name="edition[]" required></td>
                 <td><input type="text" name="booktitle[]" required></td>
                 <td><input type="text" name="signature[]"></td>
             `;