Update Part-7.md

Typo of base repository name.

docs/en/Tutorials/Part-7.md

@@ -150,7 +150,7 @@ namespace Acme.BookStore.Authors
 }
 ````
 
-* Inherited from the `EfCoreAuthorRepository`, so it inherits the standard repository method implementations.
+* Inherited from the `EfCoreRepository`, so it inherits the standard repository method implementations.
 * `WhereIf` is a shortcut extension method of the ABP Framework. It adds the `Where` condition only if the first condition meets (it filters by name, only if the filter was provided). You could do the same yourself, but these type of shortcut methods makes our life easier.
 * `sorting` can be a string like `Name`, `Name ASC` or `Name DESC`. It is possible by using the [System.Linq.Dynamic.Core](https://www.nuget.org/packages/System.Linq.Dynamic.Core) NuGet package.
 
@@ -211,7 +211,7 @@ namespace Acme.BookStore.Authors
 }
 ```
 
-* Inherited from the `MongoDbAuthorRepository`, so it inherits the standard repository method implementations.
+* Inherited from the `MongoDbRepository`, so it inherits the standard repository method implementations.
 * `WhereIf` is a shortcut extension method of the ABP Framework. It adds the `Where` condition only if the first condition meets (it filters by name, only if the filter was provided). You could do the same yourself, but these type of shortcut methods makes our life easier.
 * `sorting` can be a string like `Name`, `Name ASC` or `Name DESC`. It is possible by using the [System.Linq.Dynamic.Core](https://www.nuget.org/packages/System.Linq.Dynamic.Core) NuGet package.
 
@@ -221,4 +221,4 @@ namespace Acme.BookStore.Authors
 
 ## The Next Part
 
-See the [next part](Part-8.md) of this tutorial.
+See the [next part](Part-8.md) of this tutorial.