docs: update redirect doc (apache#8051)

Co-authored-by: Fei Han <97138894+hf400159@users.noreply.github.com>
Liu-Junlin · Nov 4, 2022 · a482d6b · a482d6b
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diff --git a/docs/en/latest/plugins/redirect.md b/docs/en/latest/plugins/redirect.md
@@ -35,7 +35,7 @@ The `redirect` Plugin can be used to configure redirects.
 | Name                | Type          | Required | Default | Valid values | Description                                                                                                                                                                                                                                                                                                                                                                                                                                                         |
 |---------------------|---------------|----------|---------|--------------|---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
 | http_to_https       | boolean       | False    | false   |              | When set to `true` and the request is HTTP, it will be redirected to HTTPS with the same URI with a 301 status code.  Note the querystring from the raw URI will also be contained in the Location header.                                                                                                                                                                                                                                                          |
-| uri                 | string        | False    |         |              | URI to redirect to. Can contain Nginx variables. For example, `/test/index.html`, `$uri/index.html`, `${uri}/index.html`. If you refer to a variable name that doesn't exist, instead of throwing an error, it will treat it as an empty variable.                                                                                                                                                                                                                  |
+| uri                 | string        | False    |         |              | URI to redirect to. Can contain Nginx variables. For example, `/test/index.html`, `$uri/index.html`, `${uri}/index.html`, `https://example.com/foo/bar`. If you refer to a variable name that doesn't exist, instead of throwing an error, it will treat it as an empty variable.                                                                                                                                                                                   |
 | regex_uri           | array[string] | False    |         |              | Match the URL from client with a regular expression and redirect. If it doesn't match, the request will be forwarded to the Upstream. Only either of `uri` or `regex_uri` can be used at a time. For example, [" ^/iresty/(.*)/(.*)/(.*)", "/$1-$2-$3"], where the first element is the regular expression to match and the second element is the URI to redirect to. APISIX only support one `regex_uri` currently, so the length of the `regex_uri` array is `2`. |
 | ret_code            | integer       | False    | 302     | [200, ...]   | HTTP response code.                                                                                                                                                                                                                                                                                                                                                                                                                                                 |
 | encode_uri          | boolean       | False    | false   |              | When set to `true` the URI in the `Location` header will be encoded as per [RFC3986](https://datatracker.ietf.org/doc/html/rfc3986).                                                                                                                                                                                                                                                                                                                                |

diff --git a/docs/zh/latest/plugins/redirect.md b/docs/zh/latest/plugins/redirect.md
@@ -35,7 +35,7 @@ description: 本文介绍了关于 Apache APISIX `redirect` 插件的基本信
 | 名称                  | 类型            | 必选项 | 默认值   | 有效值          | 描述                                                                                                                                                                                                  |
 |---------------------|---------------|-----|-------|--------------|-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
 | http_to_https       | boolean       | 否   | false | [true,false] | 当设置为 `true` 并且请求是 HTTP 时，它将被重定向具有相同 URI 和 301 状态码的 HTTPS，原 URI 的查询字符串也将包含在 Location 头中。                                                                                                                                           |
-| uri                 | string        | 否   |       |              | 要重定向到的 URI，可以包含 NGINX 变量。例如：`/test/index.htm`, `$uri/index.html`，`${uri}/index.html`。如果你引入了一个不存在的变量，它不会报错，而是将其视为一个空变量。                                                                              |
+| uri                 | string        | 否   |       |              | 要重定向到的 URI，可以包含 NGINX 变量。例如：`/test/index.htm`，`$uri/index.html`，`${uri}/index.html`，`https://example.com/foo/bar`。如果你引入了一个不存在的变量，它不会报错，而是将其视为一个空变量。                                              |
 | regex_uri           | array[string] | 否   |       |              | 将来自客户端的 URL 与正则表达式匹配并重定向。当匹配成功后使用模板替换发送重定向到客户端，如果未匹配成功会将客户端请求的 URI 转发至上游。 和 `regex_uri` 不可以同时存在。例如：["^/iresty/(.)/(.)/(.*)","/$1-$2-$3"] 第一个元素代表匹配来自客户端请求的 URI 正则表达式，第二个元素代表匹配成功后发送重定向到客户端的 URI 模板。 |
 | ret_code            | integer       | 否   | 302   | [200, ...]   | HTTP 响应码                                                                                                                                                                                            |
 | encode_uri          | boolean       | 否   | false | [true,false] | 当设置为 `true` 时，对返回的 `Location` Header 按照 [RFC3986](https://datatracker.ietf.org/doc/html/rfc3986) 的编码格式进行编码。                                                                                          |