fix: update links in index.md to remove file extensions for consistency

Author: ovvesley

docs/index.md

@@ -11,17 +11,17 @@ Although initially focused on Kubernetes-based workloads, AkôFlow has evolved t
 
 # Sections
 
-### [1 - Getting started](index.md)
+### [1 - Getting started](index)
 Here you are!
 
-### [2 - Installation](installation.md)
+### [2 - Installation](installation)
 Here you will find instructions on how to install AkôFlow in different environments, including local clusters and cloud platforms.
 
-### [3 - User Guide](user-guide.md)
+### [3 - User Guide](user-guide)
 Here you will find detailed information on how to use AkôFlow, understand its features and concepts. This section is designed to help users effectively utilize AkôFlow for their workflow orchestration needs. Additionally, it includes arquitecture diagrams to provide a better understanding of the system's structure and components.
 
-### [4 - Developer Guide](developer-guide.md)
+### [4 - Developer Guide](developer-guide)
 Here you will find information for developers who want to contribute to the AkôFlow project or build applications using its API. This section includes guidelines, best practices, and technical details to assist developers in their work.
 
-### [5 - Examples](examples.md)
+### [5 - Examples](examples)
 Here you will find practical examples and use cases demonstrating how to use AkôFlow in various scenarios. This section provides hands-on guidance to help users understand and implement AkôFlow in their own projects.