Update `EnsureExistsAsync` document.

docs/en/Entity-Framework-Core.md

@@ -607,18 +607,6 @@ Whenever you access to a property/collection, EF Core automatically performs an
 
 See also [lazy loading document](https://docs.microsoft.com/en-us/ef/core/querying/related-data/lazy) of the EF Core.
 
-## Repository Extensions
-
-There are some useful repository extension methods.
-
-````csharp
-EnsureCollectionLoadedAsync     // **Explicitly load** a sub collection.
-EnsurePropertyLoadedAsync       // **Explicitly load** a navigation property.
-EnsureExistsAsync               // Make sure the entitys exists, It accepts the entity id or a query expression.
-HardDeleteAsync                 // Hard delete the entitys, It accepts one or more entities or query expressions.
-HardDeleteWithUnitOfWorkAsync   // Hard delete the entitys in a uow(create a new uow if current is null), It accepts one or more entities or query expressions.
-````
-
 ## Access to the EF Core API
 
 In most cases, you want to hide EF Core APIs behind a repository (this is the main purpose of the repository pattern). However, if you want to access the `DbContext` instance over the repository, you can use `GetDbContext()` or `GetDbSet()` extension methods. Example:

docs/en/Repositories.md

@@ -164,6 +164,10 @@ If your entity is a soft-delete entity, you can use the `HardDeleteAsync` method
 
 > See the [Data Filtering](Data-Filtering.md) documentation for more about soft-delete.
 
+### Ensure Entities Exists
+
+The `EnsureExistsAsync` extension method accepts entity id or entities query expression to ensure entities exist, otherwise, it will throw `EntityNotFoundException`.
+
 ## Other Generic Repository Types
 
 Standard `IRepository<TEntity, TKey>` interface exposes the standard `IQueryable<TEntity>` and you can freely query using the standard LINQ methods. This is fine for most of the applications. However, some ORM providers or database systems may not support standard `IQueryable` interface. If you want to use such providers, you can't rely on the `IQueryable`.