Add intermediate lifetime.

src/intermediate/page.rs

@@ -18,10 +18,10 @@ pub(crate) struct BlogPostPage {
 }
 
 impl BlogPostPage {
-    pub(crate) async fn new<'parse, P: Into<PathBuf>>(
+    pub(crate) async fn new<'intermediate, 'parse, P: Into<PathBuf>>(
         path: P,
-        registry: &mut Registry<'parse>,
-        document: &organic::types::Document<'parse>,
+        registry: &mut Registry<'intermediate, 'parse>,
+        document: &'intermediate organic::types::Document<'parse>,
     ) -> Result<BlogPostPage, CustomError> {
         let path = path.into();
         let mut children = Vec::new();