feat: Adds ci workflow.

Sources/Docs/Extensions.swift

@@ -43,6 +43,15 @@ extension Item where M == ArticleMetadata {
     }
     return primaryTag
   }
+
+  func getDate() -> Date {
+    guard let date = metadata.date else { return date }
+    return date
+  }
+
+  func getUpdatedDate() -> Date? {
+    return metadata.updated
+  }
 }
 
 // NOTE: Most of these are taken from https://github.com/loopwerk/loopwerk.io