docs: Fix minor typo

Author: klein818

doc/build-windows-msvc.md

@@ -1,6 +1,6 @@
 # Windows / MSVC Build Guide
 
-This guide describes how to build bitcoind, command-line utilities, and GUI on Windows using Micsrosoft Visual Studio.
+This guide describes how to build bitcoind, command-line utilities, and GUI on Windows using Microsoft Visual Studio.
 
 For cross-compiling options, please see [`build-windows.md`](./build-windows.md).