Refs #36485 -- Rewrapped docs to 79 columns line length.

Lines in the docs files were manually adjusted to conform to the
79 columns limit per line (plus newline), improving readability and
consistency across the content.

docs/topics/conditional-view-processing.txt

@@ -11,8 +11,9 @@ used for all HTTP methods (``POST``, ``PUT``, ``DELETE``, etc.).
 For each page (response) that Django sends back from a view, it might provide
 two HTTP headers: the ``ETag`` header and the ``Last-Modified`` header. These
 headers are optional on HTTP responses. They can be set by your view function,
-or you can rely on the :class:`~django.middleware.http.ConditionalGetMiddleware`
-middleware to set the ``ETag`` header.
+or you can rely on the
+:class:`~django.middleware.http.ConditionalGetMiddleware` middleware to set the
+``ETag`` header.
 
 When the client next requests the same resource, it might send along a header
 such as either :rfc:`If-Modified-Since <9110#section-13.1.3>` or