Update README.md

README.md

@@ -2,6 +2,8 @@
 
 - [routes](#routes)
 - [build](#build)
+- [configure](#configure)
+  - [exaple](#example)
 
 ## routes
 
@@ -21,3 +23,20 @@
 ```shell
 go build
 ```
+
+## configure
+
+### example
+
+```
+USERS_FILE=users.json
+USERS_DB=users.db
+ENABLE_SELF_REGISTER=false
+
+ENABLE_TLS=false
+CERT_FILE=/data/file.crt
+KEY_FILE=/data/file/key
+
+SERVER_ADDRESS=0.0.0.0
+SERVER_PORT=8090
+```