Add info to verify successfull installation and address other suggestions

Signed-off-by: bhumijgupta <bhumijgupta@gmail.com>

content/en/docs/tasks/tools/install-kubectl-linux.md

@@ -184,7 +184,7 @@ Below are the procedures to set up autocompletion for Bash and Zsh.
 {{< tab name="Zsh" include="included/optional-kubectl-configs-zsh.md" />}}
 {{< /tabs >}}
 
-### Install kubectl convert plugin
+### Install `kubectl convert` plugin
 
 {{< include "included/kubectl-convert-overview.md" >}}
 
@@ -231,6 +231,13 @@ Below are the procedures to set up autocompletion for Bash and Zsh.
    sudo install -o root -g root -m 0755 kubectl-convert /usr/local/bin/kubectl-convert
    ```
 
+1. Verify plugin is successfully installed
+
+   ```shell
+   kubectl convert --help
+   ```
+
+   If you do not see an error, it means the plugin is successfully installed.
 
 ## {{% heading "whatsnext" %}}