diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..b43bf86b50fd8d3529a0dc062c30006ed38f309e
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+README.md
diff --git a/README.md b/README.md
index 4417ec36ebfe91daae76483786e51559c9703c17..339b6935aa842db57615c1ae7137df8214684f07 100644
--- a/README.md
+++ b/README.md
@@ -1 +1,3 @@
-생성
\ No newline at end of file
+생성
+modified by PC
+new line
diff --git a/hello.txt b/hello.txt
index 3462721fd4da6b3f451e6e720c547d0bbd546db3..472b96e0ed3d5bc320336418b5824ce485ad8744 100644
--- a/hello.txt
+++ b/hello.txt
@@ -1 +1,2 @@
-hello!
\ No newline at end of file
+hello!
+new line