Changing the windows installation doc to include instructions how to login
using putty instead of CMD

Signed-off-by: Krasimir Georgiev <support@vip-consult.co.uk>

Docker-DCO-1.1-Signed-off-by: Krasimir Georgiev <support@vip-consult.co.uk> (github: SvenDowideit)
fixes as requested

Docker-DCO-1.1-Signed-off-by: Sven Dowideit <SvenDowideit@docker.com> (github: SvenDowideit)
Merge pull request #9740 from SvenDowideit/pr_out_fixes_as_requested

Login with PUTTY instead of using the CMD