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Co-authored-by: Andy Butland <[email protected]>

Author: Migaroez

13/umbraco-cms/reference/cache/imemberpartialviewcacheinvalidator.md

@@ -1,28 +1,31 @@
-# ICacheRefresher
+# Partial view cache refresher for members
 
-This section describes what IMemberPartialViewCacheInvalidator is, what it's default implementation does and how to customize it.
+This section describes the `IMemberPartialViewCacheInvalidator` interface, what it's default implementation does and how to customize it.
 
-## What is an IMemberPartialViewCacheInvalidator
+## What is an IMemberPartialViewCacheInvalidator?
 
-This interface is used to isolate the logic that needs to run to invalidate parts of the PartialView cache when a member is updated
+This interface is used to isolate the logic that invalidates parts of the partial view cache when a member is updated.
 
-## Why do we need to partialy invalidate the partialView cache
+## Why do we need to partially invalidate the partial view cache?
 
-Since some of the razor templates might show data that is retrieved from a member object and those templates might be cached by using the partial caching mechanism (i.e. `@await Html.CachedPartialAsync("member",Model,TimeSpan.FromDays(1), cacheByMember:true)`), we need to remove those cached partials when a member is updated.
+Razor templates showing data retrieved from a member object can be cached as partial views via:
 
-## Where is it used
 
-This interface is called from the MemberCacheRefresher which is called every time a member is updated.
+## Where is it used?
 
-## Details of the implementation
+This interface is called from the member cache refresher (`MemberCacheRefresher`) which is invoked every time a member is updated.
+
+## Details of the default implementation
+
+Razor template partials are cached through a call to `Html.CachedPartialAsync` with `cacheByMember` set to `true`. This will append the id of the currently logged in member with a marker to the partial view cache key.  For example, `-m1015-`. 
+
+When the `ClearPartialViewCacheItems` method is called it will clear all cache items that match the marker for the updated members.
 
-When a razor template partial is cached trough `Html.CachedPartialAsync` and `cacheByMember` is set to `true`, the extension method will append the memberId of the currently logged in member and a marker (i.e. `-m1015-`) to the partialView chachekey.
-When the `ClearPartialViewCacheItems` method is called it will clear all PartialView cacheItems that have the memberId marker for all passed in members.
 Since it is possible to call the `Html.CachedPartialAsync` with `cacheByMember` set to `true` while there is no member logged in, it will also clear all cache items with an empty member marker (i.e. `-m-`)
 
 ## Customizing the implementation
 
-You can replace the default implementation like usual by removing the default and registering your own in a composer.
+You can replace the default implementation by removing it and registering your own in a composer.
 
 ```csharp
 public class ReplaceMemberCacheInvalidatorComposer : IComposer