doc: add note for Windows build path

doc: add note for Windows build path · nodejs/node@29de000

Original file line number	Diff line number	Diff line change
@@ -94,6 +94,8 @@ More Developer Tools...`. This step will install `clang`, `clang++`, and
`94`	`94`	`* You may want to setup [firewall rules](tools/macosx-firewall.sh)`
`95`	`95`	`to avoid popups asking to accept incoming network connections when running tests:`
`96`	`96`
	`97`	`+If the path to your build directory contains a space, the build will likely fail.`
	`98`	`+`
`97`	`99`	```console
`98`	`100`	`$ sudo ./tools/macosx-firewall.sh`
`99`	`101`	```
`@@ -174,6 +176,8 @@ Prerequisites:`
`174`	`176`	`[Git for Windows](http://git-scm.com/download/win) includes Git Bash`
`175`	`177`	and tools which can be included in the global `PATH`.
`176`	`178`
	`179`	`+If the path to your build directory contains a space, the build will likely fail.`
	`180`	`+`
`177`	`181`	```console
`178`	`182`	`> .\vcbuild nosign`
`179`	`183`	```