docs: add cross-references to key documentation files

- Add "Additional Documentation" section to README.md with links to FAQ,
  CUSTOMIZING_CONFIGURATION_STEPS, GOVERNANCE, SECURITY, COMPLIANCE, and ROADMAP
- Expand "Learning the Code" section in CONTRIBUTING.md with links to
  GOVERNANCE, CUSTOMIZING_CONFIGURATION_STEPS, and ROADMAP
- Add "Related Documents" section to CODE_OF_CONDUCT.md linking to
  GOVERNANCE and SECURITY policies
- Improve FAQ link formatting in SUPPORT.md

This improves documentation discoverability and helps users and contributors
navigate to relevant resources based on their needs.

Author: amilcarlucas

CODE_OF_CONDUCT.md

@@ -99,6 +99,14 @@ In addition, the rules regarding weaponization and manned vehicles using
 ArduPilot apply regardless of whether you are representing the ArduPilot
 project at the time.
 
+Related Documents
+-----------------
+
+For more information about the project governance and security practices, see:
+
+- [Project Governance](https://ardupilot.github.io/MethodicConfigurator/GOVERNANCE.html)
+- [Security Policy](https://ardupilot.github.io/MethodicConfigurator/SECURITY.html)
+
 Enforcement
 -----------
 

CONTRIBUTING.md

@@ -21,6 +21,9 @@ and also:
 
 * [System requirements](https://ardupilot.github.io/MethodicConfigurator/SYSTEM_REQUIREMENTS.html)
 * [Compliance](https://ardupilot.github.io/MethodicConfigurator/COMPLIANCE.html), including our [Coding Standards](https://ardupilot.github.io/MethodicConfigurator/COMPLIANCE.html#coding-standards)
+* [Project Governance](https://ardupilot.github.io/MethodicConfigurator/GOVERNANCE.html) - understand how the project is managed and decisions are made
+* [Customizing Configuration Steps](https://ardupilot.github.io/MethodicConfigurator/CUSTOMIZING_CONFIGURATION_STEPS.html) - extend the configuration workflow
+* [Project Roadmap](https://ardupilot.github.io/MethodicConfigurator/ROADMAP.html) - see what we're planning to work on
 
 ## Setting up developer environment
 

README.md

@@ -277,6 +277,15 @@ Need [help or support](https://ardupilot.github.io/MethodicConfigurator/SUPPORT.
 There is also [documentation on other use cases](https://ardupilot.github.io/MethodicConfigurator/USECASES.html)
 and a detailed but generic [Usermanual](https://ardupilot.github.io/MethodicConfigurator/USERMANUAL.html).
 
+**Additional Documentation:**
+
+- [Frequently Asked Questions (FAQ)](https://ardupilot.github.io/MethodicConfigurator/FAQ.html)
+- [Customizing Configuration Steps](https://ardupilot.github.io/MethodicConfigurator/CUSTOMIZING_CONFIGURATION_STEPS.html) - for advanced users and integrators
+- [Project Governance](https://ardupilot.github.io/MethodicConfigurator/GOVERNANCE.html) - how decisions are made
+- [Security Policy](https://ardupilot.github.io/MethodicConfigurator/SECURITY.html) - reporting vulnerabilities
+- [Compliance](https://ardupilot.github.io/MethodicConfigurator/COMPLIANCE.html) - standards and regulations
+- [Roadmap](https://ardupilot.github.io/MethodicConfigurator/ROADMAP.html) - planned features and improvements
+
 ## Contributing
 
 Want [to help us and contribute](https://github.com/ArduPilot/MethodicConfigurator/blob/master/CONTRIBUTING.md)?

SUPPORT.md

@@ -14,7 +14,7 @@ To help yourself, read the extensive documentation:
   [plane](https://ardupilot.github.io/MethodicConfigurator/TUNING_GUIDE_ArduPlane.html),
   [rover](https://ardupilot.github.io/MethodicConfigurator/TUNING_GUIDE_Rover.html),
   [heli](https://ardupilot.github.io/MethodicConfigurator/TUNING_GUIDE_Heli.html)
-* [FAQ](https://ardupilot.github.io/MethodicConfigurator/FAQ.html) Frequently asked questions
+* [Frequently Asked Questions (FAQ)](https://ardupilot.github.io/MethodicConfigurator/FAQ.html)
 * [Glossary](https://ardupilot.github.io/MethodicConfigurator/USERMANUAL.html#glossary)
 * [System requirements](https://ardupilot.github.io/MethodicConfigurator/SYSTEM_REQUIREMENTS.html)
 * [Software architecture](https://ardupilot.github.io/MethodicConfigurator/ARCHITECTURE.html)