docs: add emqx and mindsdb integration for greptimecloud (#895)

docs/v0.7/en/greptimecloud/integrations/emqx.md

@@ -0,0 +1,24 @@
+# EMQX Platform
+
+[EMQX Platform](https://www.emqx.io/) is an MQTT Gateway, designed to handle
+massive amounts of IoT device connections and message traffic, making it a
+popular choice for building large-scale IoT applications. It has built-in
+support for GreptimeDB as a data integration. By adding GreptimeDB as a Data
+Persistent sink, you can ingest EMQX messages into GreptimeDB automatically.
+
+You will need to follow these steps for your complete IoT data link, from MQTT
+to database:
+
+- Sign up your account on [EMQX Platform](https://www.emqx.io/)
+- Create a **Dedicated Instance** and wait for it's up and running
+- Setup Private Link or NAT Gateway for your deployment so it has internet
+  access
+- Go to **Data Integrations** and find **GreptimeDB**
+- Configure your **GreptimeDB** connector using following information
+  - Server host: `<host>:4001`
+  - Database: `<dbname>`
+  - Username: `<username>`
+  - Password: `<password>`
+
+Then you are all set. Start from using EMQX's debugging tools to generate data
+and check GreptimeDB Dashboard for the data ingested.

docs/v0.7/en/greptimecloud/integrations/mindsdb.md

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+# MindsDB
+
+[MindsDB](https://mindsdb.com/) is an open-source machine learning platform that
+enables developers to easily incorporate advanced machine learning capabilities
+with existing databases.
+
+Your GreptimeDB instance work out of box as using MySQL protocol with
+MindsDB. To configure GreptimeDB database, run the following SQL:
+
+```sql
+CREATE DATABASE greptime_datasource
+WITH ENGINE = 'mysql',
+PARAMETERS = {
+  "host": "<host>",
+  "port": 4002,
+  "database": "<dbname>",
+  "user": "<username>",
+  "password": "<password>",
+  "ssl": True
+};
+
+```
+
+MindsDB is a great gateway for many machine learning features, including
+time-series forecasting, for your time series data stored in our instance. See
+[MindsDB docs](https://docs.mindsdb.com/what-is-mindsdb) for more information.

docs/v0.7/en/summary.yml

@@ -102,7 +102,9 @@
     - influxdb
     - otlp
     - vector
+    - emqx
     - streamlit
+    - mindsdb
     - SDK-Libraries:
       - go
       - java