Update serve scripts for windows/linux

serve.sh

@@ -0,0 +1,13 @@
+# default to development|dev
+ENVIRONMENT="${1:-development}"
+if [ "$ENVIRONMENT" = "production"  ]; then
+    echo "Building for production"
+    bundle exec jekyll build --config _config.yml -t
+    exit
+elif [ "$ENVIRONMENT" = "development" ]; then
+    echo "Building for development"
+    bundle exec jekyll serve --config _config.yml,_config_dev.yml -l -t  # Live reload & debug trace
+else
+    printf "Invalid argument: %s\nValid arguments: dev[elopment]|prod[uction]" "$ENVIRONMENT"
+    exit
+fi