feat: add field for project design documentation (#163)

* feat: add field for project design documentation

Signed-off-by: Eddie Knight <knight@linux.com>

* typofix

Signed-off-by: Eddie Knight <knight@linux.com>

---------

Signed-off-by: Eddie Knight <knight@linux.com>

Author: eddie-knight

docs/schema.md

@@ -137,6 +137,7 @@ the project's documentation resources
 Optional:
 
 - `code-of-conduct`
+- `design`
 - `detailed-guide`
 - `quickstart-guide`
 - `release-process`
@@ -153,6 +154,14 @@ URL to the document outlining contributor and user conduct guidelines.
 
 ---
 
+#### `project.documentation.design` (optional)
+
+URL to design documents such as architecture or design decisions.
+
+- **Type**: [URL]
+
+---
+
 #### `project.documentation.detailed-guide` (optional)
 
 URL to more extensive or advanced documentation.

spec/schema.cue

@@ -137,6 +137,9 @@ import (
 
 // ProjectDocumentation contains links to various documents related to the project, including detailed guides, code of conduct, quickstart guides, release processes, support policies, and signature verification.
 #ProjectDocumentation: {
+	// URL to design documentation for this project.
+	design?: #URL @go(Design,type=*URL)
+
 	// URL to more extensive or advanced documentation.
 	"detailed-guide"?: #URL @go(DetailedGuide,type=*URL)
 

spec/schema.md

@@ -130,6 +130,7 @@ the project's documentation resources
 Optional:
 
 - `code-of-conduct`
+- `design`
 - `detailed-guide`
 - `quickstart-guide`
 - `release-process`
@@ -146,6 +147,14 @@ URL to the document outlining contributor and user conduct guidelines.
 
 ---
 
+#### `project.documentation.design` (optional)
+
+URL to design documents such as architecture or design decisions.
+
+- **Type**: [URL]
+
+---
+
 #### `project.documentation.detailed-guide` (optional)
 
 URL to more extensive or advanced documentation.