documented the method of storing old versions as static HTML files

Author: samuelmr

.gitignore

@@ -108,7 +108,7 @@ dist
 .tern-port
 
 # Spec-Up generated files and build artifacts
-*.html
+index.html
 !spec/**/*.html
 
 # GitHub Pages deployment artifacts  

CONTRIBUTING.md

@@ -18,6 +18,7 @@ DIIP follows a **6-month release cycle**:
 
 - **Latest Published Version**: [https://FIDEScommunity.github.io/DIIP](https://FIDEScommunity.github.io/DIIP)
 - **Latest Draft**: [https://FIDEScommunity.github.io/DIIP/draft](https://FIDEScommunity.github.io/DIIP/draft)
+- **Previous Versions***: Available as static files in the main branch. Examples: [v4](https://FIDEScommunity.github.io/DIIP/v4.html), [v5](https://FIDEScommunity.github.io/DIIP/v5.html)
 
 ## How to Contribute
 

GOVERNANCE.md

@@ -67,6 +67,7 @@ DIIP operates on a structured 6-month release cycle:
 
 - **Published Version**: Available at [https://FIDEScommunity.github.io/DIIP](https://FIDEScommunity.github.io/DIIP)
 - **Draft Version**: Available at [https://FIDEScommunity.github.io/DIIP/draft](https://FIDEScommunity.github.io/DIIP/draft)
+- **Previous Versions***: Available as static files in the main branch. Examples: [v4](https://FIDEScommunity.github.io/DIIP/v4.html), [v5](https://FIDEScommunity.github.io/DIIP/v5.html)
 
 ## Decision Making Process
 

spec/spec.md

@@ -8,6 +8,10 @@
 **Latest Draft:**
 [https://FIDEScommunity.github.io/DIIP/draft](https://FIDEScommunity.github.io/DIIP/draft)
 
+**Previous Releases:**
+[v4](v4.html),
+[v5](v5.html)
+
 Editors:
 ~ [Eelco Klaver](https://www.linkedin.com/in/eklaver/) (Credenco)
 ~ [Harmen van der Kooij](https://www.linkedin.com/in/harmenvanderkooij/) (FIDES Labs)