update README.md

Author: 0xdnL

README.md

@@ -12,13 +12,33 @@ following along: [dev.to/francescoxx/rust-crud-rest-api-3n45](https://dev.to/fra
 
 ```sh
 DB_URL='postgres://postgres:postgres@db:5432/postgres' cargo build --release    # build locally
-docker compose -f docker-compose.yaml up -d                                     # build via docker
+
+docker compose -f docker-compose.yaml build app
+docker compose -f docker-compose.yaml up -d                                     # build and run via docker
 ```
 
 ## usage
 
 ```sh
 docker compose -f docker-compose.yaml exec db psql -U postgres    # connect to db
+
+
+curl localhost:8080/users
+curl localhost:8080/users/
+```
+
+## api
+
+```sh
+curl -XGET localhost:8080/users
+
+curl -XGET localhost:8080/users/
+
+jq --null-input '{"name": "foo", "email": "[email protected]"}' | curl -XPOST localhost:8080/users -d @-
+
+jq --null-input '{"name": "max", "email": "[email protected]"}' | curl -XPUT localhost:8080/users/1 -d @-
+
+curl -i -XDELETE localhost:8080/users/3
 ```
 
 ## see also