add docs to IoT

Author: nicecui

blog/release-0-7-2.md

@@ -1,5 +1,7 @@
 ---
 date: 2024-04-08
+keywords: [release notes, greptimedb, 0.7.2]
+description: GreptimeDB 0.7.2 release notes.
 ---
 
 # v0.7.2

docs/greptimecloud/integrations/kafka.md

@@ -67,3 +67,4 @@ tls = {}
 ## Reference
 
 For detailed information on the data ingestion process, please refer to the [Ingest Data via Kafka](http://docs.greptime.com/nightly/user-guide/ingest-data/for-observerbility/kafka) guide.
+

docs/user-guide/ingest-data/for-iot/kafka.md

@@ -0,0 +1,3 @@
+# Kafka
+
+Please refer to the [Kafka documentation](/user-guide/ingest-data/for-observerbility/kafka.md) for instructions on how to ingest data from Kafka into GreptimeDB.

i18n/zh/docusaurus-plugin-content-docs/current/user-guide/ingest-data/for-iot/kafka.md

@@ -0,0 +1,4 @@
+# Kafka
+
+请参考 [Kafka 文档](/user-guide/ingest-data/for-observerbility/kafka.md)了解如何将数据从 Kafka 写入到 GreptimeDB。
+

sidebars.ts

@@ -77,6 +77,7 @@ const sidebars: SidebarsConfig = {
                   ],
                 },
                 'user-guide/ingest-data/for-iot/influxdb-line-protocol',
+                'user-guide/ingest-data/for-iot/kafka',
                 'user-guide/ingest-data/for-iot/emqx',
                 'user-guide/ingest-data/for-iot/opentsdb',
               ],
@@ -103,6 +104,7 @@ const sidebars: SidebarsConfig = {
             'user-guide/integrations/overview',
             'user-guide/integrations/prometheus',
             'user-guide/integrations/vector',
+            'user-guide/integrations/kafka',
             'user-guide/integrations/grafana',
             'user-guide/integrations/superset',
             'user-guide/integrations/metabase',