docs: read the docs did not render notice as I expected

Author: skabbes

docs/howto/named_parameters.md

@@ -63,10 +63,8 @@ sqlc infers the nullability of any specified parameters, and often does exactly
 what you want. If you want finer control over the nullability of your
 parameters, you may use `sql.narg()` (**n**ullable arg) to override the default
 behavior. Using `sql.narg` tells sqlc to ignore whatever nullability it has
-inferred and generate a nullable parameter instead.
-
-.. note::
-   There is no nullable equivalent of the `@` syntax.
+inferred and generate a nullable parameter instead. There is no nullable
+equivalent of the `@` syntax.
 
 Here is an example that uses a single query to allow updating an author's
 name, bio or both.