feat: update faq

Author: zpp12354321

FAQ.md

@@ -0,0 +1,56 @@
+### 1. 获取请求和响应类型
+在方法调用前，通过 param 和 return 获取请求和响应对应的结构体  
+以 ecs.run_instances 为例
+```python
+def run_instances(self, body, **kwargs):  # noqa: E501
+    """run_instances
+    :param RunInstancesRequest body: (required)
+    :return: RunInstancesResponse
+    """
+```
+
+
+### 2. 获取请求和响应的参数类型
+在 Request 或者 Response 请求体中，通过 swagger_types 查看具体的请求参数和类型  
+以 volcenginesdkecs.RunInstancesRequest 为例，其参数名称和定义如下所示
+```python
+swagger_types = {
+    'auto_renew': 'bool',
+    'auto_renew_period': 'int',
+    'client_token': 'str',
+    'count': 'int',
+    'network_interfaces': 'list[NetworkInterfaceForRunInstancesInput]',
+    'security_enhancement_strategy': 'str',
+    'volumes': 'list[VolumeForRunInstancesInput]',
+    ......
+}
+```
+对应的请求体为
+```python
+volcenginesdkecs.RunInstancesRequest(
+    instance_name="insname",
+    network_interfaces=[volcenginesdkecs.NetworkInterfaceForRunInstancesInput(
+        subnet_id="subnet-2d68bh73d858ozfekrm8fj",
+        security_group_ids=["sg-2b3dq7v0ha0w2dx0eg0nhljv"],
+    )],
+    image_id="image-ybvz29l3da4ox5h0m9",
+    volumes=[volcenginesdkecs.VolumeForRunInstancesInput(
+        volume_type="ESSD",
+        size=40,
+    )],
+    key_pair_name="vtable",
+    instance_charge_type="PostPaid"
+)
+```
+### 3. 出现内存溢出
+检查 Configuration._default 是否被初始化  
+如果没有初始化，每一次创建 Configuration 的时候，会创建新的 logger handler 并加入到全局的 logger 中  
+建议通过 Configuration.set_default 方法对 Configuration 进行赋值
+```python
+configuration = volcenginesdkcore.Configuration()
+configuration.client_side_validation = False
+configuration.schema = "http"  # https or http
+configuration.debug = False  # 是否开启调试
+
+volcenginesdkcore.Configuration.set_default(configuration)
+```

README.md

@@ -5,6 +5,7 @@
 * Requirements
 * Install
 * Usage
+* FAQ
 
 ### Requirements ###
 
@@ -93,3 +94,5 @@ def get_client(ak, sk, region):
     client = volcenginesdkautoscaling.AUTOSCALINGApi(volcenginesdkcore.ApiClient(configuration))
     return client
 ```
+### FAQ ###
+关于 SDK 使用时碰到的常见问题，请查看 [FAQ](FAQ.md)