fix: typo

Author: mvelosop

docs-kb/README.md

@@ -1,6 +1,6 @@
 eShopOnContainers Knowledge Base
 ================================
 
-This folder contains a set of posts created mostly from [issues on the repo](https://github.com/dotnet-architecture/eShopOnContainers/issues), in order to offer a brief introduction as well as and links to deepen the knowledge on a given subject related to the application.
+This folder contains a set of posts created mostly from [issues on the repo](https://github.com/dotnet-architecture/eShopOnContainers/issues), in order to offer a brief introduction as well as links to deepen the knowledge on a given subject related to the application.
 
 [Simplified CQRS and DDD](simplified-cqrs-ddd/post.md)