docs(k6): add usage example to module documentation

Author: spencerarq

docs/modules/k6.md

@@ -1,39 +1,25 @@
 # k6 Module
 
-!!! note 
-    This module is INCUBATING. 
-    While it is ready for use and operational in the current version of Testcontainers, it is possible that it may receive breaking changes in the future. 
-    See [our contributing guidelines](/contributing/#incubating-modules) for more information on our incubating modules policy.
+!!! note
+This module is INCUBATING.
+While it is ready for use and operational in the current version of Testcontainers, it is possible that it may receive breaking changes in the future.
+See [our contributing guidelines](/contributing/#incubating-modules) for more information on our incubating modules policy.
 
 Testcontainers module for [k6](https://registry.hub.docker.com/r/grafana/k6).
-
 [k6](https://k6.io/) is an extensible reliability testing tool built for developer happiness.
 
-## Basic script execution
-
-Execute a simple k6 test script, `test.js`, with commandline options and injected script variable.
-
-Create a simple k6 test script to be executed as part of your tests:
-
-<!--codeinclude-->
-[Setup the container](../../modules/k6/src/test/java/org/testcontainers/k6/K6ContainerTests.java) inside_block:standard_k6
-[Content of `scripts/test.js`](../../modules/k6/src/test/resources/scripts/test.js) inside_block:access_script_vars
-<!--/codeinclude-->
-
-## Adding this module to your project dependencies
-
-Add the following dependency to your `pom.xml`/`build.gradle` file:
-
-=== "Gradle"
-    ```groovy
-    testImplementation "org.testcontainers:testcontainers-k6:{{latest_version}}"
-    ```
-=== "Maven"
-    ```xml
-    <dependency>
-        <groupId>org.testcontainers</groupId>
-        <artifactId>testcontainers-k6</artifactId>
-        <version>{{latest_version}}</version>
-        <scope>test</scope>
-    </dependency>
-    ```
+## Usage
+
+Here is a basic example of how to create and start a K6 container:
+
+```java
+try (
+    // k6_container {
+    K6Container container = new K6Container(DockerImageName.parse("grafana/k6:0.49.0"))
+        .withTestScript("scripts/test.js")
+        .withScriptVar("MY_VAR", "hello")
+    // }
+) {
+    container.start();
+    // Perform assertions based on logs or container state
+}