prettify confirmation email

erpnext/crm/doctype/appointment/appointment.py

@@ -43,10 +43,17 @@ class Appointment(Document):
             self.status = 'Unverified'
             # Send email to confirm
             verify_url = self._get_verify_url()
+            template = 'confirm_appointment'
+            args = {
+                "link":verify_url,
+                "site_url":frappe.utils.get_url(),
+                "full_name":self.customer_name,
+            }
             message = ''.join(
                 ['Please click the following link to confirm your appointment:', verify_url])
             frappe.sendmail(recipients=[self.customer_email],
-                            message=message,
+                            template=template,
+                            args=args,
                             subject=_('Appointment Confirmation'))
             frappe.msgprint(
                 'Please check your email to confirm the appointment')

erpnext/templates/emails/confirm_appointment.html

@@ -0,0 +1,10 @@
+<p>{{_("Dear")}} {{ full_name }}{% if last_name %} {{ last_name}}{% endif %},</p>
+<p>{{_("A new appointment has been created for you with {0}").format(site_url)}}.</p>
+<p>{{_("Click on the link below to verify your email and confirm the appointment")}}.</p>
+
+<p style="margin: 30px 0px;">
+	<a href="{{ link }}" rel="nofollow" style="padding: 8px 20px; background-color: #7575ff; color: #fff; border-radius: 4px; text-decoration: none; line-height: 1; border-bottom: 3px solid rgba(0, 0, 0, 0.2); font-size: 14px; font-weight: 200;">{{ _("Verify Email") }}</a>
+</p>
+
+<br>
+<p style="font-size: 85%;">{{_("You can also copy-paste this link in your browser")}} <a href="{{ link }}">{{ link }}</a></p>