docs: add file api tencent cloud oss english doc (#397)

codecov.yml

@@ -26,3 +26,4 @@ ignore:
   - "pkg/wasm/watcher.go"
   - "cmd/**/*"
   - "components/lock/consul/consul_lock_task.go"
+  - "components/rpc/invoker/mosn/channel/xchannel.go"

docs/en/component_specs/file/tencentcloud_oss.md

@@ -0,0 +1,48 @@
+# Tencent Cloud OSS
+
+## metadata fields
+
+Example：configs/config_file_tencentcloud_oss.json
+
+| Field | Required  | Description                     |
+| --- |-----|---------------------------------|
+| endpoint | Y   | OSS server address              |
+| accessKeyID | Y   | accessKeyID                     |
+| accessKeySecret | Y   | accessKeySecret                 |
+| timeout | N   | request timeout in milliseconds |
+
+## Prepare
+
+1. Login https://cloud.tencent.com/
+
+2. Create Bucket
+
+visit https://console.cloud.tencent.com/cos/bucket to create bucket
+
+![](../../../img/file/create_tencent_oss_bucket.png)
+
+3.Create AK and SK
+
+visit https://console.cloud.tencent.com/cam/capi to create AK and SK
+
+After the above operation steps are completed, configure endpoint, AK and SK to ` configs/config_file_tencentcloud_oss.JSON` file
+
+## Run layotto
+
+````shell
+cd cmd/layotto_multiple_api/
+go build -o layotto
+./layotto start -c ../../configs/config_file_tencentcloud_oss.json
+````
+
+## Run Demo
+
+````shell
+cd demo/file/tencentcloud
+go build -o oss
+
+./oss put dir/a.txt aaa 
+./oss get dir/a.txt 
+./oss list dir/
+./oss del dir/a.txt
+````