Update README.md

Initial readme update based on last year's

Author: Kevin-OConnor

README.md

@@ -1,2 +1,12 @@
 # 2025Beta
-Repository for Beta Testing of 2025 Software
+Repository for Beta Testing of 20254 Software
+
+>**Software posted here is Beta software for the 2025 season and is not compatible with 2024 software or roboRIO images.**
+
+Note that all updated documentation for 2025 changes, new features, etc. can be found on the 'latest' version of the WPILib Docs site: https://docs.wpilib.org/en/latest/.
+
+[Beta Test Documentation](https://docs.wpilib.org/en/latest/docs/beta/beta-getting-started/index.html) can be found at the top of the NavBar on the left side of that page as well as [Beta Test tasks to complete](https://docs.wpilib.org/en/latest/docs/beta/tasks/index.html).
+
+## Beta Software Directory
+
+### Vendor Libraries