docs: Add SingleStore batch variant docs (#1624)

* Add SingleStore batch variant docs

* Add SingleStore batch variant docs

site/docs/reference/Connectors/capture-connectors/MySQL/singlestore-batch.md

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+# SingleStore Batch Query Connector
+
+This connector captures data from SingleStore into Flow collections by periodically executing queries and translating
+the results into JSON documents. It leverages SingleStore's MySQL wire compatibility to interact with the database.
+
+**This connector periodically re-executes the query**. The default polling interval is set
+to 24 hours to minimize this behavior's impact, but depending on table size, it may lead to duplicated data being
+processed.
+
+If the dataset has a natural cursor that can identify only new or updated rows, it should be specified by editing the
+`Cursor` property of the binding. Common examples of suitable cursors include:
+
+- Update timestamps, which are typically the best choice since they can capture all changed rows, not just new rows.
+- Creation timestamps, which work for identifying newly added rows in append-only datasets but won’t capture updates.
+- Serially increasing IDs, which can be used to track newly added rows.
+
+## Setup
+
+1. Ensure that [Estuary's IP addresses are allowlisted](/reference/allow-ip-addresses) to allow access. You can do by
+   following [these steps](https://docs.singlestore.com/cloud/reference/management-api/#control-access-to-the-api)
+2. Grab the following details from the SingleStore workspace.
+    3. Workspace URL
+    4. Username
+    5. Password
+    6. Database
+7. Configure the Connector with the appropriate values. Make sure to specify the database name under the "Advanced"
+   section.