Update README.md

Signed-off-by: SandboxCodeX <253301533+nguyenvanhoaithuong0507-hub@users.noreply.github.com>

Author: SandboxCodeX

README.md

@@ -1,6 +1,6 @@
-# GitHub Docs <!-- omit in toc -->
+# Sandboxcode Docs <!-- omit in toc -->
 
-Welcome to GitHub Docs! GitHub’s documentation is open source, meaning anyone from inside or outside the company can contribute. For full contributing guidelines, visit our [contributing guide](https://docs.github.com/en/contributing).
+Welcome to sandboxcode Docs! sandboxcode’s documentation is open source, meaning anyone from inside or outside the company can contribute. For full contributing guidelines, visit our [contributing guide](https://docs.github.com/en/contributing).
 
 
 ## Quick links by contributor type