Added info for using TortoiseSVN

Author: Simon Martin

README.md

@@ -8,6 +8,10 @@ This VSCode Extension is based on [vscode-svn](https://github.com/INesterov/vsco
 > machine's SVN installation,  
 > so you need to [install SVN](https://subversion.apache.org) first. 
 
+## Windows
+
+If you use [TortoiseSVN](https://tortoisesvn.net/), make sure the option **Command Line Tools** is checked during installation and `C:\Program Files\TortoiseSVN\bin` is available in PATH.
+
 ## Features
 
 - [x] Source Control View