update endpoints doc

packages/docs/docs/configuration/endpoints.md

@@ -17,12 +17,16 @@ endpoints:
  url: "https://example.com/target_path"
  request:
  headers:
- Custom-Header: "value"
+ Add-Header: "value"
+ Remove-Header: ""
+ Replace-Header: "new value"
  query:
  key: "value"
  response:
  headers:
- Custom-Response-Header: "value"
+ Add-Header: "value"
+ Remove-Header: ""
+ Replace-Header: "new value"
  policies:
  - cors
  - rateLimit
@@ -49,13 +53,7 @@ Modifies the request before it is sent to the target.
 
 - `headers`: Key-value pairs representing headers to add, remove or replace in the request. Each key represents the header name, and its value represents the header value. (Optional)
 
-```
-request:
- headers:
- Add-Header: "value"
- Remove-Header: ""
- Replace-Header: "new value"
-```
+**Note:** If you want to remove a header, set its value to an empty string (`""`). If you want to replace a header, set its value to the new header value.
 
 - `query`: Key-value pairs representing query parameters to add to the request. Each key represents the query parameter name, and its value represents the query parameter value. (Optional)
 
@@ -65,13 +63,7 @@ Modifies the response before it is sent back to the client.
 
 - `headers`: Key-value pairs representing headers to add, remove or replace in the response. Each key represents the header name, and its value represents the header value. (Optional)
 
-```
-request:
- headers:
- Add-Header: "value"
- Remove-Header: ""
- Replace-Header: "new value"
-```
+**Note:** If you want to remove a header, set its value to an empty string (`""`). If you want to replace a header, set its value to the new header value.
 
 ### policies (Optional)