Add bluegreen.png

Author: bcb

docs/assets/bluegreen.png

@@ -1,12 +1,12 @@
-# Blue/Green Deployments
-
 Blue/Green deployment runs two stacks side-by-side: one live, one idle. You
 deploy to the idle stack, test it, and when ready, swap roles — giving
 near-zero downtime and easy rollback.
 
-## 1. Caddyfile
+![Blue/Green](../assets/bluegreen.png)
+
+## 1. Adjustments to the Compose file
 
-Remove the exposed ports from Caddy by removing the `ports:` section in
+Remove the exposed ports by removing the Caddy `ports:` section in
 `compose.yaml`.
 
 Set `CADDY_SITE_ADDRESS` to only `:80` (leaving TLS termination to the front
@@ -29,7 +29,7 @@ volumes:
     name: user-data
 ```
 
-## 2. Front Proxy
+## 2. Add a Front Proxy
 
 The front proxy is a single Caddy container that binds `:80` and `:443` on the
 server and routes requests into either the Blue or Green stack.

docs/bluegreen.md

@@ -0,0 +1,16 @@
+# Build Your App
+
+## Project Structure
+
+```
+📁 bin/                  → Helper scripts (e.g. wrappers for CLI tools)
+📁 caddy/                → Caddy configuration
+📁 docs/                 → Markdown files for SuperStack documentation
+📁 postgres/             → Postgres configuration and SQL migrations
+📄 compose.yaml          → Main Docker Compose config
+📄 compose.override.yaml → Optional local overrides (development only)
+📄 example.env           → Example environment variables — copy to `.env`
+📄 LICENSE               → License file (MIT)
+📄 logo.png              → SuperStack logo for README/docs
+📄 README.md             → Overview and quick start for the repository
+```