Document cloudflare deployment (#488)

README.md

@@ -2,7 +2,9 @@
 
 Web Interface for Mailbox.
 
-## Usage via Docker
+## Usage
+
+### Docker
 
 ```shell
 docker run --env AWS_ACCESS_KEY_ID=<AWS_ACCESS_KEY_ID> \
@@ -13,6 +15,13 @@ docker run --env AWS_ACCESS_KEY_ID=<AWS_ACCESS_KEY_ID> \
            harryzcy/mailbox-browser
 ```
 
+### Cloudflare Pages & Pages Functions
+
+1. Clone the repository
+1. Create [Cloudflare project](https://developers.cloudflare.com/pages/get-started/guide/)
+1. Configure correct environment variables according to [this](#environment-variables) section
+1. Run `make cloudflare`
+
 Replace the environment variables with respective values.
 
 ## Environment Variables
@@ -30,4 +39,5 @@ Replace the environment variables with respective values.
 | Directory | Description |
 | --------- | ----------- |
 | bff | Backend for frontend |
+| cloudflare | Cloudflare Pages deployment |
 | web | Web frontend |