Fix typos

src/pretix/control/templates/pretixcontrol/items/discounts.html

@@ -14,7 +14,7 @@
         {% blocktrans trimmed %}
             Automatic discounts are available to all customers as long as they are active. If you want to offer special
             prices only to specific customers, you can use vouchers instead. If you want to offer discounts across
-            multiple purchases ("buy a package of 10 you can turn into individual tickest later"), you can use
+            multiple purchases ("buy a package of 10 you can turn into individual tickets later"), you can use
             customer accounts and memberships instead.
         {% endblocktrans %}
     </p>