Update deployer README

Author: fabriziodemaria

confidence-cloudflare-resolver/deployer/README.md

@@ -14,15 +14,19 @@ docker build -f confidence-cloudflare-resolver/deployer/Dockerfile -t <YOUR_IMAG
 
 ```
 docker run -it \
+	-e CLOUDFLARE_ACCOUNT_ID='<>’ \
 	-e CLOUDFLARE_API_TOKEN='<>’ \
 	-e CONFIDENCE_ACCOUNT_ID='<>' \
-	-e RESOLVE_TOKEN_ENCRYPTION_KEY='<>' \
-	-e CLOUDFLARE_ACCOUNT_ID='<>’ \
 	-e CONFIDENCE_CLIENT_ID='<>’ \
 	-e CONFIDENCE_CLIENT_SECRET='<>’ \
+	-e RESOLVE_TOKEN_ENCRYPTION_KEY='<>' \
 	-e CONFIDENCE_RESOLVER_STATE_ETAG_URL=‘<>/v1/state:etag' \
 	image-name
 ```
 
 The RESOLVE_TOKEN_ENCRYPTION_KEY key has to be a valid AES-128 (16 bytes) key, base64 encoded.
-This key is used internally in the resolver, and shouldn't be changed once deployed in production.
+This key is used internally in the resolver, and shouldn't be changed once deployed in production.
+
+The CONFIDENCE_RESOLVER_STATE_ETAG_URL needs to point to the resolver you deployed / are about to deploy. 
+The `.../v1/state:etag` is the path used to retrieve the etag if available, ignored otherwise.
+The etag value is used to avoid re-deploy the worker if the state hasn't changed since the last deploy.