Enhance documentation for System76 Thelio Astra: add description and fix alt txt

content/learning-paths/automotive/system76-auto/_index.md

@@ -1,6 +1,8 @@
 ---
 title: Develop Arm automotive software on the System76 Thelio Astra
 
+description: Learn how to build and run the Arm Automotive Solutions Software Reference Stack locally on the System76 Thelio Astra desktop using Multipass virtualization and Yocto build tools.
+
 minutes_to_complete: 60
 
 who_is_this_for: This is an introductory topic for automotive developers interested in local development using the System76 Thelio Astra Linux desktop computer. 
@@ -22,6 +24,10 @@ armips:
 operatingsystems:
     - Linux
 tools_software_languages:
+    - Multipass
+    - Yocto
+    - Docker
+    - Git
 
 further_reading:
     - resource:

content/learning-paths/automotive/system76-auto/about.md

@@ -6,7 +6,7 @@ weight: 2
 
 layout: "learningpathall"
 ---
-### About the Thelio Astra
+## About the Thelio Astra
 
 Thelio Astra is an Arm-based desktop computer designed by System76 for autonomous vehicle development and other general-purpose Arm software development.
 

content/learning-paths/automotive/system76-auto/build.md

@@ -31,7 +31,7 @@ Press the space bar and the arrow keys to select the three components shown in t
 - **Safety Island Actuation Demo**.
 - **Baremetal**. 
 
-![configuration #center](configure.png)
+![Kas configuration menu showing three selected options: EULA acceptance, Safety Island Actuation Demo, and Baremetal, with Build button highlighted at bottom#center](configure.png)
 
 {{% notice Note %}}
 To build and run, you must accept the EULA.