Update readme

README.md

@@ -10,18 +10,18 @@ Getting started is easy. The repository contains both .NET and JS code. Below is
 
 **Prerequisites**
 
-- [.NET Core 2.1](https://www.microsoft.com/net/download)
+- [.NET Core 3.1](https://www.microsoft.com/net/download)
 
 After cloning the repo, go into `dotnet/` and run `dotnet restore`, there is more information [here](dotnet/README.md).
 
-### JS
+### Typescript
 
 **Prerequisites**
 
-- [Node 10.10+](https://nodejs.org/en/download/current/)
-- [Yarn 1.9.4+](https://yarnpkg.com/lang/en/)
+- [Node 13.2+](https://nodejs.org/en/download/current/)
+- [Yarn 1.22+](https://yarnpkg.com/lang/en/)
 
-After cloning the repo, go into `js/` and run `yarn`, there is more information [here](js/README.md).
+After cloning the repo, go into `typescript/` and run `yarn`, there is more information [here](js/README.md).
 
 
 ## Progress