add post install message

CloudronManifest.json

@@ -23,5 +23,6 @@
   ],
   "memoryLimit": 524288000,
   "changelog": "file://CHANGELOG",
-  "tags": [ "forum", "collaboration", "community", "discourse", "bb" ]
+  "tags": [ "forum", "collaboration", "community", "discourse", "bb" ],
+  "postInstallMessage": "file://POSTINSTALL.md"
 }

DESCRIPTION.md

@@ -1,16 +1,5 @@
 This app contains NodeBB Version 1.1.2
 
-### Accounts
-
-This NodeBB app is meant to be used as a public forum. Use the following credentials for initial
-setup:
-
-`username`: admin
-
-`password`: changeme
-
-**Please change the admin password and email on first login**
-
 ### Overview
 
 A community forum allows you to engage and retain customers, keeping them interested

POSTINSTALL.md

@@ -0,0 +1,10 @@
+This NodeBB app is meant to be used as a public forum.
+
+Use the following credentials for initial setup:
+
+`username`: admin
+
+`password`: changeme
+
+**Please change the admin password and email on first login**
+