Bank transfer: Allow markdown in accoutn details

src/pretix/plugins/banktransfer/payment.py

@@ -48,6 +48,7 @@ from localflavor.generic.forms import BICFormField, IBANFormField
 from localflavor.generic.validators import IBANValidator
 from text_unidecode import unidecode
 
+from pretix.base.forms import I18nMarkdownTextarea
 from pretix.base.models import InvoiceAddress, Order, OrderPayment, OrderRefund
 from pretix.base.payment import BasePaymentProvider
 from pretix.base.templatetags.money import money_filter
@@ -124,7 +125,7 @@ class BankTransfer(BasePaymentProvider):
             )),
             ('bank_details', I18nFormField(
                 label=_('Bank account details'),
-                widget=I18nTextarea,
+                widget=I18nMarkdownTextarea,
                 help_text=_(
                     'Include everything else that your customers might need to send you a bank transfer payment. '
                     'If you have lots of international customers, they might need your full address and your '

src/pretix/plugins/banktransfer/templates/pretixplugins/banktransfer/checkout_confirm.html

@@ -1,6 +1,7 @@
 {% load i18n %}
 {% load ibanformat %}
 {% load bootstrap3 %}
+{% load rich_text %}
 
 {% if details or code %}
     <p>{% blocktrans trimmed %}
@@ -18,7 +19,7 @@
         </dl>
     {% endif %}
 
-    {{ details|linebreaks }}
+    {{ details | rich_text }}
     {% if not code %}</div>{% endif %}
 
     {% if code %}

src/pretix/plugins/banktransfer/templates/pretixplugins/banktransfer/checkout_payment_form.html

@@ -1,5 +1,6 @@
 {% load i18n %}
 {% load ibanformat %}
+{% load rich_text %}
 
 {% if details or code %}
     <p>{% blocktrans trimmed %}
@@ -17,7 +18,7 @@
         </dl>
     {% endif %}
 
-    {{ details|linebreaks }}
+    {{ details | rich_text }}
     {% if not code %}</div>{% endif %}
 
     {% if code %}

src/pretix/plugins/banktransfer/templates/pretixplugins/banktransfer/pending.html

@@ -29,7 +29,7 @@
                 {% endif %}
             {% endif %}
             {% if details %}
-                {{ details|linebreaks }}
+                {{ details | rich_text }}
                 <dl class="dl-horizontal">
             {% endif %}
             {% if not settings.bank_details_type == "sepa" and not details %}