change verbose_name of slug field

src/c3nav/mapdata/migrations/0013_auto_20170618_1934.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+# Generated by Django 1.11.2 on 2017-06-18 19:34
+from __future__ import unicode_literals
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('mapdata', '0012_rename_section_to_level'),
+    ]
+
+    operations = [
+        migrations.AlterField(
+            model_name='locationslug',
+            name='slug',
+            field=models.SlugField(null=True, unique=True, verbose_name='Slug'),
+        ),
+    ]