docs: update table of workflows

Signed-off-by: Alessio Greggi <[email protected]>

README.md

@@ -76,4 +76,4 @@ Here's the list of reusable workflows available from this repository:
 
 | **Name**            | **Variables**                                                | **Description**                                              |
 | ------------------- | ------------------------------------------------------------ | ------------------------------------------------------------ |
-| `sanity-check.yaml` | -  `SYSTEM_TESTS_BRANCH`: define alternative branch to clone for [system-tests](github.com/armosec/system-tests) repository. Default: `master`<br />- `BINARY_TESTS`: specify which tests are going to be executed by the workflow. | This workflow allow you to run **system-tests** in the **production** environment |
+| `sanity-check.yaml` | - GH_RUNNER: define the runner to use on the workflow. Default: `ubuntu-latest`</br>- `SYSTEM_TESTS_BRANCH`: define alternative branch to clone for [system-tests](github.com/armosec/system-tests) repository. Default: `master`</br>- `BINARY_TESTS`: specify which tests are going to be executed by the workflow. | This workflow allow you to run **system-tests** in the **production** environment |