The install script only allows for Linux or Darwin, while a Windows release is available. #81

Running the install command on git bash in Windows returns that the OS is not supported

user@pc MINGW64  ~ 
$ curl -s https://raw.githubusercontent.com/lighttiger2505/lab/master/install.sh | bash
OS not supported

This seems to be caused by the OS check in the install script:

case $(uname -s) in
Linux)  os="linux";;
Darwin) os="darwin";;
*) 

When I check the release page I do see Windows binaries, which I can download and install manually.
Can the install script be adjusted to take into account Windows users as well?