Adds wikijs app.

wikijs/versions/2/README.md

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+# Wiki.js
+
+Wiki.js is a powerful, extensible open-source wiki platform built on Node.js.
+
+## Dependencies
+
+- **PostgreSQL** - Database for storing wiki content and configuration
+
+## Configuration
+
+Key settings in `config.yaml`:
+
+- **domain** - Where Wiki.js will be accessible
+- **storage** - Persistent volume size (default: `1Gi`)
+- **db.name** - Database name (default: `wikijs`)
+
+## First-Time Setup
+
+1. Add and deploy the app:
+   ```bash
+   wild app add wikijs
+   wild app deploy wikijs
+   ```
+
+2. Visit the app URL — on first load, a setup wizard will run automatically.
+
+3. Create your administrator account in the setup wizard (email + password).
+
+4. Complete the wizard and you will be redirected to the wiki homepage.
+
+## Notes
+
+- The setup wizard only runs once on first launch
+- Additional authentication providers (LDAP, OAuth, etc.) can be configured in the admin panel under **Administration → Authentication**
+- Git-based storage sync can be configured for backup or collaborative editing workflows