docs: fix code formatting

doc/Learn/Mvux/ListFeeds.md

@@ -6,13 +6,13 @@ uid: Uno.Extensions.Mvux.ListFeeds
 
 A list-feed (`IListFeed`) is like a [feed](xref:Uno.Extensions.Mvux.Feeds) which is stateless and keeps no track of changes, but is specialized for handling collections.
 
-Unlike a feed, where each asynchronous operation, returns one single item (or a series of single items in the case of an `IAsyncEnumerable`), a list-feed returns a collection of items.  
+Unlike a feed, where each asynchronous operation, returns one single item (or a series of single items in the case of an `IAsyncEnumerable`), a list-feed returns a collection of items.
 
 A couple of points to note about list-feeds:
 
 - [Operators](#operators) are applied to the items within the returned collection, rather than on the entire collection.
 
-- When an empty collection is returned by the service, it's treated as an Empty message. The returned data axis Option will be `None`, even though the result was not `null`.  
+- When an empty collection is returned by the service, it's treated as an Empty message. The returned data axis Option will be `None`, even though the result was not `null`.
 This is because when a control of data items is displayed with an empty collection (for instance a `ListView`), there is no reason to display the `FeedView`'s `ValueTemplate` with an empty `ListView`. The "No data records" `NoneTemplate` makes much more sense in this case. For that reason, both a `null` result and an empty collection are regarded as `None`.
 
 - The list-feed is uses the _key equality_ to track multiple versions of the same entity within different messages of the list-feed.
@@ -81,7 +81,7 @@ As mentioned, unlike a `Feed<List<T>>` operators on a list-feed are directly int
 
 ### Where
 
-This operator allows the filtering of the items.  
+This operator allows the filtering of the items.
 
 ```csharp
 public IListFeed<string> LongNames => Names.Where(name => name.Length >= 10);