added customizable Servings text

cookbook/migrations/0100_recipe_servings_text.py

@@ -0,0 +1,18 @@
+# Generated by Django 3.1.5 on 2021-01-21 19:02
+
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('cookbook', '0099_auto_20210113_1518'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='recipe',
+            name='servings_text',
+            field=models.CharField(blank=True, default='', max_length=32),
+        ),
+    ]