diff --git a/aliu11.md b/aliu11.md
new file mode 100644
index 0000000..b22bf91
--- /dev/null
+++ b/aliu11.md
@@ -0,0 +1 @@
+ The fork request is just a request for GitHub to clone the master repo and registers it to your username. Then you can use git clone to clone the project to write and edit the codes/informations. Git branch are pointer to commit. They save olders commit so you can acces them if you mess up.
diff --git a/netid.md b/netid.md
deleted file mode 100644
index e69de29..0000000