update 2025-04-06

Changes:
- fix README.md old json format usage
- rename "redirect" option to "proxy_pass"
- move docker-compose.yml and nginx.conf.j2 to examples and add to .gitignore
- fix situation when one domain from domains.txt and servers.yaml appeared twice in nginx.conf

README.md

@@ -2,19 +2,17 @@
 
 ## Preparation
 
-Add your domains for _certbot_ to [domains.txt file at nginx directory](nginx/domains.txt) and servers configuration
-  json file in format
-```json
-{
-  "domain": {
-    "redirect": "redirection_path",
-    "options": [
-      "some_nginx_option_on_server_level here;"
-    ]
-  }
-}
-```
-to [servers.json file at nginx directory](nginx/servers.json).
+1. Copy and edit (if needed) [nginx/nginx.conf.j2](nginx/nginx.conf.j2.example) file.
+2. Add your certified domains to nginx/domains.txt file ([example](nginx/domains.txt.example)).
+
+    These domains will be used by _certbot_ to monitor and update (if possible) certificates. _Nginx_ will also setup
+    http server for the given entries.
+
+    However if the domain is set both in domains.txt and servers.yaml (next step), _nginx_ will
+    use https with certificates at the given path. That will fail nginx startup if the certificate
+    to at least one domain is missing (--http-only option will skip domains.txt check).
+
+3. Add your servers section configuration to nginx/servers.yaml ([example](nginx/servers.yaml.example)).
 
 User email used for certbot can be set as environment variable at build process or in .env file.