Add grade to employee master (#13654)

diff --git a/erpnext/hr/doctype/employee/employee.json b/erpnext/hr/doctype/employee/employee.json
index 0c715e6..39383ff 100644
--- a/erpnext/hr/doctype/employee/employee.json
+++ b/erpnext/hr/doctype/employee/employee.json
@@ -978,6 +978,38 @@
    "bold": 0, 
    "collapsible": 0, 
    "columns": 0, 
+   "fieldname": "grade", 
+   "fieldtype": "Link", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_global_search": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 0, 
+   "label": "Grade", 
+   "length": 0, 
+   "no_copy": 0, 
+   "options": "Employee Grade", 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "translatable": 0, 
+   "unique": 0
+  }, 
+  {
+   "allow_bulk_edit": 0, 
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
    "fieldname": "notice_number_of_days", 
    "fieldtype": "Int", 
    "hidden": 0,