add package header documentation

api/block/handle.go

@@ -1,3 +1,8 @@
+// Package block provides functionality to load HTML blocks with associated content, JavaScript, and CSS from the filesystem.
+// API Endpoint: 
+// 		/api/block/{blockPath}
+// Example: 
+// 		/api/block/header would load the block located at {BlockDir}/header/
 package block
 
 import (