refine doc for kafka ext stream

Author: jovezhong

docs/proton-kafka.md

@@ -26,9 +26,10 @@ SETTINGS
     brokers='ip:9092', -- required
     topic='..', -- required
     security_protocol='..',
+    sasl_mechanism='..',
     username='..',
     password='..',
-    sasl_mechanism='..',
+    config_file='..',
     data_format='..',
     format_schema='..',
     one_message_per_row=..,
@@ -37,8 +38,7 @@ SETTINGS
     ssl_ca_cert_file='..',
     ssl_ca_pem='..',
     skip_ssl_cert_check=..,
-    properties='..',
-    config_file='..'
+    properties='..'
 ```
 
 :::info
@@ -126,6 +126,18 @@ If the external stream is used to write data to a Kafka topic and the `data_form
 #### kafka_schema_registry_url
 Set to the address of Kafka Schema Registry server. `http` or `https` need to be included. [Learn more](/proton-schema-registry) for this setting and other settings with `kafka_schema_` as the prefix.
 
+#### kafka_schema_registry_credentials
+Set in the 'username:password' format. [Learn more](/proton-schema-registry).
+
+#### ssl_ca_cert_file
+Set to the path of the CA certificate file.
+
+#### ssl_ca_pem
+Set to the content of the CA certificate file. Usually starts with `-----BEGIN CERTIFICATE-----`.
+
+#### skip_ssl_cert_check
+Default to `false`. Set to `true` to skip the SSL certificate check and don't specify the CA certificate file or content.
+
 #### properties
 
 For more advanced use cases, you can specify customized properties while creating the external streams. Those properties will be passed to the underlying Kafka client, which is [librdkafka](https://github.com/confluentinc/librdkafka/blob/master/CONFIGURATION.md). Please refer to the [section](#advanced_settings) in the bottom of this page for more details.

docs/sql-create-external-stream.md

@@ -13,11 +13,14 @@ SETTINGS type='kafka',
          password='..',
          sasl_mechanism='..',
          data_format='..',
+         format_schema='..',
+         one_message_per_row=..,
          kafka_schema_registry_url='..',
          kafka_schema_registry_credentials='..',
          ssl_ca_cert_file='..',
          ss_ca_pem='..',
          skip_ssl_cert_check=..,
+         properties='..',
          config_file='..'
 ```
 
@@ -42,7 +45,8 @@ SETTINGS
     client_key='..',
     connections_per_broker=..,
     memory_limit=..,
-    io_threads=..
+    io_threads=..,
+    config_file='..'
 ```
 
 Please check the [Pulsar External Stream](/pulsar-external-stream#ddl-settings) for more details.
@@ -57,7 +61,8 @@ SETTINGS
     user = '<user>',
     password = '<password>',
     secure = <bool>,
-    stream = '<stream_name>'
+    stream = '<stream_name>',
+    config_file='..'
 ```
 Settings:
 * **hosts**: the IP or host for the remote timeplusd. When you set a set of hosts with ports, e.g. 'host1:port1,host2:port2', this will treat each host as a shard. `hosts` is required and there is no default value.