Add node section to valkey (#121)

Author: eddumelendez

modules/valkey/index.md

@@ -15,6 +15,17 @@ docs:
       ```bash
       go get github.com/testcontainers/testcontainers-go/modules/valkey
       ```
+  - id: nodejs
+    url: https://node.testcontainers.org/modules/valkey/
+    maintainer: core
+    example: |
+      ```javascript
+      const container = await new ValkeyContainer("valkey/valkey:8.0").start();
+      ```
+    installation: |
+      ```bash
+      npm install @testcontainers/valkey --save-dev
+      ```
 description: |
   Valkey is an open source (BSD) high-performance key/value datastore that supports a variety of workloads such as caching, message queues, and can act as a primary database. Valkey can run as either a standalone daemon or in a cluster, with options for replication and high availability.
 ---