diff --git a/docs/projects/xrpl-swap/intro.md b/docs/projects/xrpl-swap/intro.md
index 27691b3..a1ff603 100644
--- a/docs/projects/xrpl-swap/intro.md
+++ b/docs/projects/xrpl-swap/intro.md
@@ -1,5 +1,4 @@
 ---
-id: my_doc
 title: "Introduction"
 sidebar_label: "Intro"
 sidebar_position: 1
@@ -9,3 +8,5 @@ keywords:
   - "Defi"
   - "Project"
 ---
+
+Hello
diff --git a/docs/research/blockchain/intro.md b/docs/research/blockchain/intro.md
index ce01362..fb87af6 100644
--- a/docs/research/blockchain/intro.md
+++ b/docs/research/blockchain/intro.md
@@ -1 +1,11 @@
-hello
+---
+title: "Introduction"
+sidebar_label: "Intro"
+sidebar_position: 1
+description: "Introduction to the research on blockchain."
+keywords:
+  - "Blockchain"
+  - "Research"
+---
+
+Hello