fix spelling

taggit/forms.py

@@ -16,4 +16,4 @@ class TagField(forms.CharField):
         try:
             return parse_tags(value)
         except ValueError:
-            raise forms.ValidationError("Please provide a comma seperate list of tags.")
+            raise forms.ValidationError("Please provide a comma-separated list of tags.")

taggit/managers.py

@@ -85,7 +85,7 @@ class TaggableManager(object):
     def formfield(self, form_class=TagField, **kwargs):
         defaults = {
             "label": "Tags",
-            "help_text": "A comma seperated list of tags."
+            "help_text": "A comma-separated list of tags."
         }
         defaults.update(kwargs)
         return form_class(**kwargs)