copy specs from Mira as it is the same chassis

Aaron Honeycutt · jacobgkau · commit 3aecd98a3884 · 2025-01-02T09:22:00.000-07:00
diff --git a/src/models/thelio-astra-a1-n1/README.md b/src/models/thelio-astra-a1-n1/README.md
@@ -93,3 +93,5 @@ The System76 Thelio Astra is a desktop with the following specifications:
 - USB
     - Back ports:
         - 4x USB 3.2 Gen 1 (Type-A)
+- Dimensions
+    - 43.8cm × 24.7cm × 37.2cm
