docs: call out `kv export` and the transaction API

website/content/commands/kv/get.mdx

@@ -12,6 +12,12 @@ store at the given key name. If no key exists with that name, an error is
 returned. If a key exists with that name but has no data, nothing is returned.
 A key name or prefix is required.
 
+-> When reading many entries under a given prefix, it may be worth considering
+[`kv export`](/commands/kv/export) instead, the output of which can be used
+with [`kv import`](/commands/kv/import) to move entire trees between Consul
+clusters. Alternatively, the [transaction API](/api-docs/txn) provides
+support for performing up to 64 KV operations atomically.
+
 ## Usage
 
 Usage: `consul kv get [options] [KEY_OR_PREFIX]`