Add athens app build files for cloudron

CloudronManifest.json

@@ -0,0 +1,29 @@
+{
+  "id": "com.athens.cloudronapp",
+  "title": "Athens",
+  "author": "Athens Project",
+  "description": "Outliner note taking app similar to Roam Research",
+  "tagline": "It's annoying to have to type a tagline for a test project",
+  "version": "0.0.1",
+  "healthCheckPath": "/",
+  "httpPort": 3000,
+  "addons": {
+    "localstorage": {},
+    "ldap": {},
+    "postgresql": {},
+    "sendmail": {}
+  },
+  "optionalSso": true,
+  "memoryLimit": 1610612736,
+  "manifestVersion": 2,
+  "website": "https://github.com/athensresearch/athens",
+  "contactEmail": "support@clourdon.io",
+  "icon": "",
+  "tags": [ "notes", "outliner" ],
+  "mediaLinks": [],
+  "postInstallMessage": "good luck",
+  "minBoxVersion": "5.3.0",
+  "documentationUrl": "https://github.com/athensresearch/athens",
+  "forumUrl": "https://forum.cloudron.io/",
+  "changelog": "It's also annoying to require a changelog"
+}