Update code owner files (CentaurusInfra#382)

* Update project documents

* Update code owners.

OWNERS

@@ -1,41 +1,22 @@
-# See the OWNERS docs at https://go.k8s.io/owners
-
-filters:
-  ".*":
-    reviewers:
-      - brendandburns
-      - dchen1107
-      - jbeda
-      - lavalamp
-      - smarterclayton
-      - thockin
-      - liggitt
-    approvers:
-      - bgrant0607
-      - brendandburns
-      - dchen1107
-      - jbeda
-      - monopole # To move code per kubernetes/community#598
-      - lavalamp
-      - smarterclayton
-      - thockin
-      - wojtek-t
-      - liggitt
-
-  # Bazel build infrastructure changes often touch files throughout the tree
-  "\\.bzl$":
-    reviewers:
-      - ixdy
-    approvers:
-      - ixdy
-  "BUILD(\\.bazel)?$":
-    approvers:
-      - ixdy
-
-  # go.{mod,sum} files relate to go dependencies, and should be reviewed by the
-  # dep-approvers
-  "go\\.(mod|sum)$":
-    required_reviewers:
-      - kubernetes/dep-approvers
-    labels:
-      - area/dependency
+
+# This file lists the code owners of different areas of the project. 
+# These owners are the default code reviewers and approvers for PRs of the corresponding area.
+
+
+Overall:
+  @panda98004, @XiaoningDing
+
+Controllers:
+  @dingyin, @Sindica, @vinaykul, @jshaofuturewei
+
+Node agent:
+  @XiaoningDing, @h-w-chen, @yb01, @pdgetrf, @vinaykul
+
+Scalability:
+  @haibinxie, @Sindica, @jeffzhu503, @sonyafenge
+
+Multi-tenancy:
+  @chenqianfzh, @XiaoningDing
+
+Documents:
+  @panda98004, @deepak-vij, @XiaoningDing, @zmn223