diff --git a/docs/source/advanced_topic/architecture.md b/docs/source/advanced_topic/architecture.md
index 13dd75f..306e027 100644
--- a/docs/source/advanced_topic/architecture.md
+++ b/docs/source/advanced_topic/architecture.md
@@ -1,3 +1,3 @@
-# The architecture of RayFed
+# The Architecture of RayFed
 
 TBD
\ No newline at end of file
diff --git a/docs/source/advanced_topic/principle.md b/docs/source/advanced_topic/principle.md
index 59283be..a3690e3 100644
--- a/docs/source/advanced_topic/principle.md
+++ b/docs/source/advanced_topic/principle.md
@@ -1,3 +1,3 @@
-# The principle of RayFed
+# The Principle of RayFed
 
 TBD
\ No newline at end of file
diff --git a/docs/source/tutorials/federated_learning_demo.ipynb b/docs/source/tutorials/federated_learning_demo.ipynb
index 069fc58..6ead86e 100644
--- a/docs/source/tutorials/federated_learning_demo.ipynb
+++ b/docs/source/tutorials/federated_learning_demo.ipynb
@@ -4,7 +4,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# Federated learning on RayFed"
+    "# Federated Learning on RayFed"
    ]
   }
  ],
diff --git a/docs/source/tutorials/split_learning_demo.ipynb b/docs/source/tutorials/split_learning_demo.ipynb
index fe16293..532154f 100644
--- a/docs/source/tutorials/split_learning_demo.ipynb
+++ b/docs/source/tutorials/split_learning_demo.ipynb
@@ -4,7 +4,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "# Split learning on RayFed"
+    "# Split Learning on RayFed"
    ]
   }
  ],