feat: add offline cli docs (#4614)

* feat: add offline cli docs

* Apply suggestions from code review

Co-authored-by: Julianne Fermi <julianne@kubeshop.io>

---------

Co-authored-by: Julianne Fermi <julianne@kubeshop.io>

docs/docs/testkube-cloud/articles/cached-results.md

@@ -23,3 +23,31 @@ Cached test results appear with a read-only tag. These tests cannot be updated.
 ![offline-test-suite](../../img/offline-test-suite.png)
 
 Similar to tests, Testkube Cloud supports also cached test suites, using the data stored in Cloud. These can be identified by the read-only tag which suggests that either your agent is not connected, or that a particular test suite definition is no longer available in Kubernetes.
+
+## CLI
+
+You can use Testkube CLI to retrieve read-only tests and test suites, their executions, and download artifacts. Make sure to use version v1.16.7 or greater. You can use the `testkube version` command to check your client version.
+
+For example, listing tests:
+
+```sh
+testkube get tests
+```
+
+```yaml
+  NAME   | DESCRIPTION | TYPE      | CREATED                       | LABELS                         | SCHEDULE | STATUS | EXECUTION ID       
+---------+-------------+-----------+-------------------------------+--------------------------------+----------+--------+---------------------------
+  k6 |             | k6/script | 0001-01-01 00:00:00 +0000 UTC | executor=k6-executor,          |          | failed | 64e4ace7dfca3109c5d2cc38
+         |             |           |                               | test-type=k6-script            |          |        |                    
+```
+
+You can also list and get executions as well as download artifacts:
+
+```sh
+testkube get executions
+
+testkube get execution 64e4ace7ca80a3290a4a762f
+
+tk get artifact 654b867e234f24e69172b2ab
+tk download artifacts 654b867e234f24e69172b2ab
+```