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

nginx/domains.txt.example

@@ -1,5 +1,5 @@
-your.domain.to_redirect
+your.domain.to_listen
 your_other.doma.in
 *.doma.in
 #commented.domain
-domain.without.redirect
+domain.without.proxy