Delete old doc.

samples/MicroserviceDemo/README.md

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 # Microservice Demo Solution
 
-See the [documentation](https://abp.io/documents/abp/latest/Samples/Microservice-Demo).
+This sample aims to demonstrate a simple yet complete microservice solution. See the [documentation](https://abp.io/documents/abp/latest/Samples/Microservice-Demo).
 

samples/MicroserviceDemo/docs/design/Overall.md

@@ -1,21 +0,0 @@
-# Microservice Demo Overall
-
-## Introduction
-
-The goal of this work is to show how to create a complete microservice solution based on the ABP framework.
-
-## Tooling
-
-* **[ASP.NET Core](https://docs.microsoft.com/en-us/aspnet/core/?view=aspnetcore-2.2)** as the web framework.
-* **[ABP](https://abp.io)** as the application framework.
-* **[Ocelot](https://github.com/ThreeMammals/Ocelot)** as the API Gateway.
-* **[IdentityServer4](https://identityserver.io/)** as the authentication server/framework.
-* [**Redis**](https://redis.io/) for distributed cache.
-* [**RabbitMQ**](https://www.rabbitmq.com/) for distributed messaging.
-* **[Serilog](https://serilog.net/)** for logging.
-* **[Elasticsearch](https://www.elastic.co/products/elasticsearch)** as log database.
-* **[Kibana](https://www.elastic.co/products/kibana)** as visualization tool (for logs in the Elasticsearch).
-
-## Diagram
-
-![diagram](diagram.png)