add page-freshness plugin

book.json

@@ -2,6 +2,7 @@
   "title": "kanthaus handbook",
   "honkit": ">3.0.0",
   "plugins": [
+    "page-freshness",
     "edit-link",
     "advanced-emoji",
     "-fontsettings",
@@ -9,6 +10,15 @@
     "-sharing"
   ],
   "pluginsConfig": {
+    "page-freshness":{
+      "position": "top",
+      "modifyTpl": "Last modified by {user} {timeStamp}",
+      "createTpl": "Created by {user} {timeStamp}",
+      "timeStampFormat": "YYYY-MM-DD HH:mm:ss",
+      "bestBeforeUnit":"years",
+      "bestBefore":"2",
+      "noticeTpl":"More than {passed} years have passed since last update."
+    },
     "edit-link": {
       "base": "https://gitlab.com/kanthaus/handbook/edit/master",
       "label": "Edit This Page"

package.json

@@ -3,7 +3,9 @@
   "version": "1.0.0",
   "description": "Hello handbook!",
   "main": "index.js",
-  "dependencies": {},
+  "dependencies": {
+    "honkit-plugin-page-freshness": "^0.1.0"
+  },
   "devDependencies": {
     "gitbook-plugin-advanced-emoji": "^0.2.2",
     "gitbook-plugin-edit-link": "^2.0.2",