docs: add references to the tech architecture

Author: UlisesGascon

CONTRIBUTING.md

@@ -9,6 +9,7 @@ The project has an open governance model. Individuals making significant and val
 ## Contents
 
 * [Code of Conduct](#code-of-conduct)
+* [Architecture](#architecture)
 * [Issues](#issues)
 * [Pull Requests](#pull-requests)
 * [Current Initiatives](#current-initiatives)
@@ -18,6 +19,11 @@ The project has an open governance model. Individuals making significant and val
 
 The project has a [Code of Conduct](/CODE_OF_CONDUCT.md) to which all contributors must adhere.
 
+
+## Architecture
+
+The project includes a [technical architecture guide](/ARCHITECTURE.md) that provides in-depth explanations of various concepts.
+
 ## Issues
 
 You have several templates available:

README.md

@@ -50,6 +50,8 @@ Yes, we are looking for HELP in many ways! 😇 Let’s collaborate and have fun
 
 Another great way to get involved is by participating in [the OpenJS Security Collab Space](https://github.com/openjs-foundation/security-collab-space). We hold regular meetings to discuss this initiative and many other exciting topics.
 
+The project includes a [technical architecture guide](/ARCHITECTURE.md) that provides in-depth explanations of various concepts.
+
 ---
 
 ## Getting Started