feat: add default env on codegen

Author: luizstacio

packages/graphql/README.md

@@ -8,12 +8,12 @@ This is a mock api for block-explorer
 pnpm dev
 ```
 
-## Docker images
+## Docker
 
 ```
 docker run \
   -e FUEL_PROVIDER=https://beta-5.fuel.network/graphql \
   -e SERVER_PORT=3000 \
   -p 3333:3000 \
-
+  ghcr.io/fuellabs/fuel-explorer:main
 ```

packages/graphql/codegen.fuel.ts

@@ -2,7 +2,9 @@ import type { CodegenConfig } from '@graphql-codegen/cli';
 
 import { requireEnv } from './src/utils/requireEnv';
 
-const { FUEL_PROVIDER } = requireEnv(['FUEL_PROVIDER']);
+const { FUEL_PROVIDER } = requireEnv([
+  ['FUEL_PROVIDER', 'https://beta-5.fuel.network/graphql'],
+]);
 
 const config: CodegenConfig = {
   generates: {