Small fixes for Warnings found by PyCharm, mostly spellingerrors.

src/content/models.py

@@ -111,6 +111,7 @@ class Article(models.Model):
         """Returns the headline of this article."""
         return self.headline
 
+    # noinspection PyUnresolvedReferences
     @property
     def get_image(self):
         """Return the article image, or the category image if unset."""
@@ -169,6 +170,7 @@ class Category(models.Model):
         return self.name
 
 
+# noinspection PyUnresolvedReferences
 class Page(models.Model):
     """A page on this homepage. It can have a "static" HTML page, the URL of a
     dynamic Django view, or a PDF document.
@@ -317,12 +319,12 @@ class Page(models.Model):
             raise ValidationError(
                 _(u'Please upload a PDF-File to this PDF-Page.'))
 
-    def get_absolute_url(self):
+    def get_absolute_url(self) -> str:
         """Return the path with an extension that matches the content type.
-        It's useful for an user to match the URL to the contenttype.
+        It's useful for a user to match the URL to the contenttype.
 
-        :return: sting with the absolute URL of this page."""
-        return '/' + self.path + CONTENT_TYPE_EXTENSIONS[self.content_type]
+        :return: string with the absolute URL of this page."""
+        return '/' + str(self.path) + CONTENT_TYPE_EXTENSIONS[self.content_type]
 
     class Meta(object):
         """Set default ordering and an unique priamry key to avoid dupes."""