Add README files for various applications: Decidim, Discourse, Example Admin, Example App, Ghost, Immich, Keila, Lemmy, Listmonk, Loomio, Matrix, Memcached, MySQL, Open WebUI, OpenProject, PostgreSQL, Redis, and vLLM

decidim/README.md

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+# Decidim
+
+Decidim is a participatory democracy framework for cities and organizations. Built in Ruby on Rails, it enables citizen participation through proposals, debates, and voting. Includes Sidekiq for background job processing.
+
+## Dependencies
+
+- **PostgreSQL** - Database for storing participatory processes and user data
+- **Redis** - Used for Sidekiq background job processing
+
+## Configuration
+
+Key settings configured through your instance's `config.yaml`:
+
+- **domain** - Where Decidim will be accessible (default: `decidim.{your-cloud-domain}`)
+- **siteName** - Display name for your platform (default: `Decidim`)
+- **systemAdminEmail** - System admin email (defaults to your operator email)
+- **storage** - Persistent volume size (default: `20Gi`)
+- **SMTP** - Email delivery settings inherited from your Wild Cloud instance
+
+## Access
+
+After deployment, Decidim will be available at:
+- `https://decidim.{your-cloud-domain}`
+
+## First-Time Setup
+
+1. Add and deploy the app:
+   ```bash
+   wild app add decidim
+   wild app deploy decidim
+   ```
+
+2. Log in with the system admin credentials configured during setup
+
+3. Create your first organization and configure participatory processes