Add bootstrap-Windows.cmd

usage: bootstrap-Windows.cmd [/?]

Bootstrap a macOS instance with:

* Windows SDK - from MSDN
* Chocolatey - package manager
* Git - from Chocolatey
* Python - from Chocolatey
* virtualenv - from pip
* SSH key - from ssh-keygen
* GitHub public key - with SSH key
* conduit - configuration manager

optional arguments:
        /?              show this help message and exit

bootstrap-Ubuntu.sh

@@ -11,8 +11,6 @@ show_help() {
   echo
   echo "Bootstrap a Ubuntu or Linux Mint instance with:"
   echo
-  echo "* update apt cache"
-  echo "* upgrade apt packages"
   echo "* git - from apt"
   echo "* python - from apt"
   echo "* python-pip - from apt"
@@ -30,7 +28,7 @@ show_help() {
 
 yes=0
 
-while getopts 'hy' opt; do
+while getopts 'hdy' opt; do
   case $opt in
     h) show_help; exit 0 ;;
     y) yes=1 ;;
@@ -135,6 +133,7 @@ fi
 
 # TODO: Gogs SSH key
 
+# Prompt user to setup other SSH key recipients
 if [ -f ~/.ssh/id_rsa.pub ]; then
   echo "----------------------------------------------------------------------"
   cat ~/.ssh/id_rsa.pub
@@ -142,6 +141,7 @@ if [ -f ~/.ssh/id_rsa.pub ]; then
   read -rp "Set other SSH key recipients, press ENTER to continue: "
 fi
 
+# Install conduit
 missing conduit && agree "Install conduit" && \
   pip_install git+ssh://git@github.com/kbenzie/conduit.git