diff --git a/hello.md b/hello.md
index b9209e7..cb01dd5 100644
--- a/hello.md
+++ b/hello.md
@@ -1 +1 @@
-# Hello worlde
+# Hello world Jie Li
diff --git a/world.md b/world.md
new file mode 100644
index 0000000..716ed14
--- /dev/null
+++ b/world.md
@@ -0,0 +1 @@
+# Hello world