[FLINK-10249][docs] Document hadoop/presto s3 file system configurati…

…on forwarding

docs/ops/filesystems/s3.md

@@ -64,10 +64,10 @@ There is no need to add Hadoop to the classpath to use them.
 Both internally use some Hadoop code, but "shade away" all classes to avoid any dependency conflicts.
 
  - `flink-s3-fs-presto`, registered under the scheme *"s3:https://"* and *"s3p:https://"*, is based on code from the [Presto project](https://prestodb.io/).
- You can configure it the same way you can [configure the Presto file system](https://prestodb.io/docs/0.187/connector/hive.html#amazon-s3-configuration).
+ You can configure it the same way you can [configure the Presto file system](https://prestodb.io/docs/0.187/connector/hive.html#amazon-s3-configuration) by placing adding the configurations to your `flink-conf.yaml`.
 
  - `flink-s3-fs-hadoop`, registered under *"s3:https://"* and *"s3a:https://"*, based on code from the [Hadoop Project](https://hadoop.apache.org/).
- The file system can be [configured exactly like Hadoop's s3a](https://hadoop.apache.org/docs/stable/hadoop-aws/tools/hadoop-aws/index.html#S3A).
+ The file system can be [configured exactly like Hadoop's s3a](https://hadoop.apache.org/docs/stable/hadoop-aws/tools/hadoop-aws/index.html#S3A) by placing adding the configurations to your `flink-conf.yaml`.
 
 Both `flink-s3-fs-hadoop` and `flink-s3-fs-presto` register default FileSystem
 wrappers for URIs with the `s3:https://` scheme, `flink-s3-fs-hadoop` also registers

docs/ops/filesystems/s3.zh.md

@@ -64,10 +64,10 @@ There is no need to add Hadoop to the classpath to use them.
 Both internally use some Hadoop code, but "shade away" all classes to avoid any dependency conflicts.
 
  - `flink-s3-fs-presto`, registered under the scheme *"s3:https://"* and *"s3p:https://"*, is based on code from the [Presto project](https://prestodb.io/).
- You can configure it the same way you can [configure the Presto file system](https://prestodb.io/docs/0.187/connector/hive.html#amazon-s3-configuration).
+ You can configure it the same way you can [configure the Presto file system](https://prestodb.io/docs/0.187/connector/hive.html#amazon-s3-configuration) by placing adding the configurations to your `flink-conf.yaml`.
 
  - `flink-s3-fs-hadoop`, registered under *"s3:https://"* and *"s3a:https://"*, based on code from the [Hadoop Project](https://hadoop.apache.org/).
- The file system can be [configured exactly like Hadoop's s3a](https://hadoop.apache.org/docs/stable/hadoop-aws/tools/hadoop-aws/index.html#S3A).
+ The file system can be [configured exactly like Hadoop's s3a](https://hadoop.apache.org/docs/stable/hadoop-aws/tools/hadoop-aws/index.html#S3A) by placing adding the configurations to your `flink-conf.yaml`.
 
 Both `flink-s3-fs-hadoop` and `flink-s3-fs-presto` register default FileSystem
 wrappers for URIs with the `s3:https://` scheme, `flink-s3-fs-hadoop` also registers