Mention system requirements in quick start guide

Author: VajiraPrabuddhaka

docs/getting-started/quick-start-guide.md

@@ -10,10 +10,13 @@ When you're done, you can fully clean up the setup, leaving your machine clutter
 
 ### Prerequisites
 
-To get started, you’ll need:
+To get started, you'll need:
 
 - **Docker** – Just have it installed on your machine, and you're good to go.
     - We recommend using [Docker Engine version 26.0+](https://docs.docker.com/engine/release-notes/26.0/).
+- **System Requirements**:
+    - **Minimum**: 4GB memory & 2 CPU cores for trying out the quick-start
+    - **Recommended**: 8GB memory & 4 CPU cores for trying out with all samples
 - **5–10 minutes of your time** – Setup is quick and depends on your internet connection speed.
 
 ## Start the Dev Container