Update README to dotnet 10 (#2492)

Author: PotatOverlord

README.md

@@ -38,7 +38,7 @@ The first step to building OpenDream is initializing the submodule for the game
 
 To do this, simply run `git submodule update --init --recursive` in git bash and let it finish.
 
-**OpenDream requires .NET 9.** You can check your version by running `dotnet --version`. It should be at least `9.0.0`.
+**OpenDream requires .NET 10.** You can check your version by running `dotnet --version`. It should be at least `10.0.0`.
 
 To build, one can use a C# compiler (such as MSBuild) to compile the various projects described in the solution. To use the .NET build system, simply run `dotnet build -c Release` in the OpenDream directory. This will build all of the solutions in release mode and put the resultant binaries in `bin`