update codecov.yaml

Former-commit-id: bffbfa941ff7fcb1fb2acb8efd6d2d78dad1affe

codecov.yaml

 #Configuration File for CodeCov
 coverage:
+  precision: 2
+  round: down
+  range: "70...100"
+
   status:
-    project: off
-    patch: off
+    project: on
+    patch: yes
+    changes: no
+
+comment:
+  layout: "header, diff, changes, tree"
+  behavior: default