Fix post install

CHANGELOG

@@ -70,3 +70,6 @@
 [0.13.4]
 * Add post install message
 
+[0.13.5]
+* Fix post install message
+

CloudronManifest.json

@@ -4,7 +4,7 @@
   "author": "Gogs developers",
   "description": "file://DESCRIPTION.md",
   "tagline": "A painless self-hosted Git Service",
-  "version": "0.13.4",
+  "version": "0.13.5",
   "healthCheckPath": "/healthcheck",
   "httpPort": 3000,
   "addons": {
@@ -32,5 +32,5 @@
   ],
   "tags": [ "version control", "git", "code hosting", "development" ],
   "changelog": "file://CHANGELOG",
-  "postInstallMessage": "POSTINSTALL.md"
+  "postInstallMessage": "file://POSTINSTALL.md"
 }