:+1: version and update docs

CHANGES.md

@@ -1,6 +1,11 @@
 CHANGES
 ========
 
+## 2.0.0
+
+* Feature: Enabled to integrate with Slack using Incoming Webhooks
+* Support: Upgrade all outdated libs
+
 ## 1.2.16
 
 * Improvement: Condition for creating portal

package.json

@@ -1,6 +1,6 @@
 {
   "name": "crowi-plus",
-  "version": "1.2.17-RC",
+  "version": "2.0.0-RC",
   "description": "Enhanced Crowi",
   "tags": [
     "wiki",