message: updated schema and initial instructions
diff: You need to store user management data in some table we use this table structure:
  ```
  +CREATE TABLE roles (
  + name text NOT NULL PRIMARY KEY
  +);
  +
  +INSERT INTO roles (name) VALUES ('user');
  +
  CREATE TABLE users (
  id bigserial PRIMARY KEY,
  username text NOT NULL UNIQUE,
  @@ -21,26 +27,22 @@ CREATE TABLE users (
  active boolean NOT NULL DEFAULT false,
  secret_token uuid NOT NULL,
  default_role text NOT NULL DEFAULT 'user',
  - created_at timestamp with time zone NOT NULL DEFAULT now()
  -);
  -
  -CREATE TABLE roles (
  - name text NOT NULL PRIMARY KEY
  + created_at timestamp with time zone NOT NULL DEFAULT now(),
  + FOREIGN KEY (default_role) REFERENCES roles (name)
  );
  -INSERT INTO roles (name) VALUES ('user');
  -
  CREATE TABLE users_x_roles (
  id bigserial PRIMARY KEY,
  user_id int NOT NULL,
  role text NOT NULL,
  FOREIGN KEY (user_id) REFERENCES users (id),
  - FOREIGN KEY (role) REFERENCES roles (name)
  + FOREIGN KEY (role) REFERENCES roles (name),
  + UNIQUE (user_id, role)
  );
  CREATE TABLE refetch_tokens (
  id bigserial PRIMARY KEY,
  - refetch_token uuid NOT NULL,
  + refetch_token uuid NOT NULL UNIQUE,
  user_id int NOT NULL,
  expires_at timestamp with time zone NOT NULL,
  created_at timestamp with time zone NOT NULL DEFAULT now(),
  @@ -56,6 +58,7 @@ Add to `docker-compose.yaml`:
  hasura-backend-plus:
  image: elitan/hasura-backend-plus
  environment:
  + PORT: 3000
  USER_FIELDS: ''
  USER_REGISTRATION_AUTO_ACTIVE: 'true'
  HASURA_GQE_ENDPOINT: http://graphql-engine:8080/v1alpha1/graphql
  @@ -68,7 +71,7 @@ hasura-backend-plus:
  REFETCH_TOKEN_EXPIRES: 43200
  JWT_TOKEN_EXPIRES: 15
  volumes:
  - ./storage-rules.js:/app/src/storage/storage-rules.js
  + - ./storage-rules:/app/src/storage/rules
  caddy:
  ....
  @@ -83,6 +86,12 @@ Add this to your caddy file
  <domain-running-this-service> {
  proxy / hasura-backend-plus:3000
  }
  +
  +Ex:
  +backend.myapp.io {
  + proxy / hasura-backend-plus:3000
  +}
  +
  ```
  Restart your docker containers
  