Update README.md

Optimized README

Author: chris-sun-star

README.md

@@ -1,2 +1,44 @@
-# terraform-provider-oceanbase
-基于多云 api 实现的 OceanBase 的 terraform-provider, 可以让用户使用 terraform 来管理多云上的 OceanBase 资源。
+# Terraform Provider for OceanBase
+This provider allows user to manage OceanBase resources on cloud environment using terraform, it's based on OceanBase's [multi-cloud platform](https://console-cn.oceanbase.com) APIs.
+
+## Requirements
+Go 1.22 (to build the provider)
+
+## Building The Provider
+Run the following command to build the provider
+```
+make build
+```
+## Using the provider
+First, configure the `.terraformrc` file under user's home directory, make sure to the real path where the binary located.
+```
+provider_installation {
+
+  dev_overrides {
+      "oceanbase.github.io/oceanbase/oceanbase" = "~/terraform-provider-oceanbase/bin"
+  }
+
+  # For all other providers, install them directly from their origin provider
+  # registries as normal. If you omit this, Terraform will _only_ use
+  # the dev_overrides block, and so no other providers will be available.
+  direct {}
+}
+```
+
+You can refer to the following config to use the provider.
+```
+terraform {
+  required_providers {
+    oceanbase = {
+      source  = "oceanbase.github.io/oceanbase/oceanbase"
+    }
+  }
+}
+
+provider "oceanbase" {
+  access_key  = "access_key"
+  secret_key = "secret_key"
+  site = "CHINA" # CHINA or GLOBAL
+}
+```
+For OceanBase related resources configurations, please refer to the files under example directory.