fix formatting

CloudronManifest.json

@@ -24,7 +24,7 @@
     "https://wordpress.org/about/shots/1.5/front-2.png",
     "https://wordpress.org/about/shots/1.5/front-5.png",
     "https://wordpress.org/about/shots/1.5/front-3.png"
- ],
- "changelog": "file://CHANGELOG",
- "postInstallMessage": "file://POSTINSTALL.md"
+  ],
+  "changelog": "file://CHANGELOG",
+  "postInstallMessage": "file://POSTINSTALL.md"
 }