doc: Update webui version to match upstream

Author: mochalins

README.md

@@ -2,7 +2,7 @@
 
 ![Logo](https://raw.githubusercontent.com/webui-dev/webui-logo/main/webui_zig.png)
 
-# WebUI Zig v2.5.0-Beta-1
+# WebUI Zig v2.5.0-beta.2
 
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@@ -22,8 +22,6 @@
 
 </div>
 
-> v2.5.0-1-0 is coming!
-
 ## Features
 
 - Portable (*Needs only a web browser or a WebView at runtime*)