Updated SPFx references with version 1.20.0 in compatibility matrix and dev environment setup doc

Author: HarminderSethi

docs/spfx/compatibility.md

@@ -1,7 +1,7 @@
 ---
 title: SharePoint Framework development tools and libraries compatibility
 description: Find which versions of the SharePoint Framework are compatible with each version of SharePoint, development tools and libraries.
-ms.date: 06/26/2023
+ms.date: 09/27/2024
 ms.localizationpriority: high
 ---
 # SharePoint Framework development tools and libraries compatibility
@@ -34,6 +34,7 @@ The following table lists SharePoint Framework and compatible versions of common
 
 |              SPFx               |   Node.js (LTS) |   TypeScript   |    React    |
 | ------------------------------- | --------------- | -------------- | ----------- |
+| [1.20.0](release-1.20.md)       | v18             | v4.5, v4.7     | v17.0.1     |
 | [1.19.0](release-1.19.md)       | v18             | v4.5, v4.7     | v17.0.1     |
 | [1.18.2](release-1.18.2.md)     | v16, v18        | v4.5, v4.7     | v17.0.1     |
 | [1.18.1](release-1.18.1.md)     | v16, v18        | v4.5, v4.7     | v17.0.1     |

docs/spfx/set-up-your-development-environment.md

@@ -1,7 +1,7 @@
 ---
 title: Set up your SharePoint Framework development environment
 description: Use any text editor to build SharePoint Framework solutions. You can use macOS, Windows, or Linux.
-ms.date: 08/19/2024
+ms.date: 09/27/2024
 ms.localizationpriority: high
 ms.custom: scenarios:getting-started
 ---
@@ -42,7 +42,7 @@ You can check if you already have Node.js installed, including the installed ver
 node --version
 ```
 
-SharePoint Framework v1.19.* is supported on Node.js v18 LTS (*aka: Hydrogen*).
+SharePoint Framework v1.20.* is supported on Node.js v18 LTS (*aka: Hydrogen*).
 
 SharePoint Framework v1.18.* is supported on the following Node.js versions: