Updates to styleguide

Brings in changes to the email message and table patterns.

app/main/views/styleguide.py

@@ -1,6 +1,7 @@
 from flask import render_template, current_app, abort
 from flask_wtf import Form
 from wtforms import StringField, PasswordField, TextAreaField, FileField, validators
+from utils.template import Template
 from app.main import main
 
 
@@ -17,13 +18,16 @@ def styleguide():
         message = TextAreaField(u'Message')
         file_upload = FileField('Upload a CSV file to add your recipients’ details')
 
+    sms = "Your vehicle tax for ((registration number)) is due on ((date)). Renew online at www.gov.uk/vehicle-tax"
+
     form = FormExamples()
-
-    form.message.data = "Your vehicle tax for ((registration number)) is due on ((date)). Renew online at www.gov.uk/vehicle-tax"  # noqa
-
+    form.message.data = sms
     form.validate()
 
+    template = Template({'content': sms})
+
     return render_template(
         'views/styleguide.html',
-        form=form
+        form=form,
+        template=template
     )