minor changes, auto-certificate

example.env

@@ -0,0 +1,12 @@
+BOT_TOKEN=YOUR_BOT_TOKEN_HERE  # example: 123456789:AAAA-abc123_AbcdEFghijKLMnopqrstu12
+
+POSTGRES_USER=olgram
+POSTGRES_PASSWORD=SOME_RANDOM_PASSWORD_HERE  # example: x2y0n27ihiez93kmzj82
+POSTGRES_DB=olgram
+POSTGRES_HOST=postgres
+
+WEBHOOK_HOST=YOUR_HOST_HERE  # example: 11.143.142.140 or my_domain.com
+WEBHOOK_PORT=8443  # allowed: 80, 443, 8080, 8443
+CUSTOM_CERT=true  # use that if you don't set up your own domain and let's encrypt certificate
+
+REDIS_PATH=redis://redis