Added note to use CLI to get diagnostics if Cockpit is not running. (#468)

Author: tonybaltovski

docs_versioned_docs/version-ros2jazzy/ros/troubleshooting.mdx

@@ -9,7 +9,7 @@ import JitterError from "/docs_versioned_docs/version-ros2jazzy/components/troub
 The following are common problems our [support team](https://support.clearpathrobotics.com/hc/en-us)
 have received. Before [submitting a request](https://support.clearpathrobotics.com/hc/en-us/requests/new)
 please review the items below to see if they resolve your problem. If your problem is not resolved, download a [diagnostic capture](./cockpit/ros2_diagnostics.mdx#capture-diagnostics) from the [Cockpit webserver](./cockpit/overview.mdx) and attach it to the support request.
-An alternative to Cockpit diagnostic capture is running `ros2 run clearpath_robot grab-diagnostics` which will grab all the typical data needed for troubleshooting and place it into a compressed folded.
+If accessing the Cockpit webserver fails, an alternative to Cockpit diagnostic capture is running `ros2 run clearpath_robot grab-diagnostics` which will grab all the typical data needed for troubleshooting and place it into a compressed folded.
 It can be copied off the computer using a tool such as `scp`.
 
 Our [getting started](/docs/ros) section may also help answer some questions.