minimal nodejs version updated

Author: thurka

README.MD

@@ -5,7 +5,7 @@ See [Documentation](vscode/README.md) on VSNetBeans features.
 
 ## Requirements
 * JDK 17 or higher to build and run Java LSP
-* Node.js 18.20 or higher and npm installed to build VSIX
+* Node.js 20.18.1 or higher and npm installed to build VSIX
 
 ## Build
 Apache NetBeans Language Server for VS Code consists of source code for VS Code integration in this repository and NetBeans IDE sources linked as [netbeans submodule](netbeans/) from main [NetBeans Git repo](https://github.com/apache/netbeans/).
@@ -18,4 +18,4 @@ See [BUILD.MD](BUILD.MD) how to build VSNetBeans using this repository and NetBe
 In VS Code IDE Extensions panel search for *NetBeans*, select **Language Server for Java by Apache** and Install.
 
 ## Reporting Issues
-Issues for VSNetBeans has to be filled in this repository Issues section on GitHub.
+Issues for VSNetBeans has to be filled in this repository Issues section on GitHub.