Readme: distinguish between bash and cmd actions

Signed-off-by: Philip Oakley <[email protected]>

Author: Philip Oakley

README.md

@@ -7,6 +7,8 @@ https://gitforwindows.org/
 
 ## Developing
 
+Note: if you have the cautious 'Use Git from Git Bash only' setting then you may need to change from bash to cmd at step 2, adjusting the cd path at step 3.
+
 0. `git clone https://github.com/git-for-windows/git-for-windows.github.io.git` (this repo) 
 1. Install [Node.js](https://nodejs.org/) (contains the 'npm' package manager)
 2. Install Grunt: `npm install -g grunt-cli`
@@ -15,4 +17,3 @@ https://gitforwindows.org/
 5. Run `grunt connect`
 6. Open `http://localhost:4000` in your favorite browser to check the changes.
 
-(Tested on XP, and onwards)