Fix badge link

Author: hackinghackers

README.md

@@ -1,5 +1,5 @@
 # 24 Game Solver
 
-[![Open in Visual Studio Code](https://open.vscode.dev/badges/open-in-vscode.svg)](https://open.vscode.dev/organization/repository)
+[![Open in Visual Studio Code](https://open.vscode.dev/badges/open-in-vscode.svg)](https://open.vscode.dev/techstack-studios/24-solver-cpp)
 
 The solver of the classic 24-point (24点) game written in C++.