Update HTTP client config doc

docs/src/main/sphinx/admin/properties-exchange.md

@@ -4,6 +4,8 @@ Exchanges transfer data between Trino nodes for different stages of
 a query. Adjusting these properties may help to resolve inter-node
 communication issues or improve network utilization.
 
+Additionally, you can configure the exchange [HTTP client usage](/admin/properties-http-client).
+
 ## `exchange.client-threads`
 
 - **Type:** {ref}`prop-type-integer`

docs/src/main/sphinx/admin/properties-http-client.md

@@ -17,6 +17,8 @@ The following prefixes are supported:
 
 - `oauth2-jwk` for {doc}`/security/oauth2`
 - `jwk` for {doc}`/security/jwt`
+- `exchange` to configure data transfer between Trino nodes in addition to
+  [](/admin/properties-exchange)
 
 ## General properties
 
@@ -28,6 +30,13 @@ The following prefixes are supported:
 
 Timeout value for establishing the connection to the external service.
 
+### `max-content-length`
+
+- **Type:** [](prop-type-duration)
+- **Default value:** `16MB`
+
+Maximum content size for each HTTP request and response.
+
 ### `http-client.request-timeout`
 
 - **Type:** {ref}`prop-type-duration`