Update Domain-Driven-Design-Implementation-Guide.md

docs/en/Domain-Driven-Design-Implementation-Guide.md

@@ -12,6 +12,7 @@ The goals of this document are;
 * Explain the **layered architecture** & solution structure offered by the ABP Framework.
 * Introduce **explicit rules** to implement DDD patterns and best practices by giving **concrete examples**.
 * Show what **ABP Framework provides** you as the infrastructure for implementing DDD in a proper way.
+* And finally, provide **suggestions** based on software development **best practices** and our experiences to create a **maintainable codebase**.
 
 ### Simple Code!