add new install.sh and update README

install.sh

@@ -0,0 +1,35 @@
+#!/bin/bash
+
+echo "installing dotfiles"
+
+echo "initializing submodule(s)"
+git submodule update --init --recursive
+
+echo "creating symlinks"
+linkables=$( ls -1 -d **/*.symlink )
+for file in $linkables ; do
+    target="$HOME/.$( basename $file ".symlink" )"
+    echo "creating symlink for $file"
+    ln -s $file $target
+done
+
+if [ "$(uname)" == "Darwin" ]; then
+    echo "running on OSX"
+
+    echo "installing homebrew"
+    ruby -e "$(curl -fsSL https://raw.githubusercontent.com/Homebrew/install/master/install)"
+
+    echo "brewing all the things"
+    source scripts/brew.sh
+
+    echo "updating OSX settings"
+    source scripts/osx.sh
+
+    echo "installing node (from nvm)"
+    nvm install stable
+    nvm alias default stable
+fi
+
+
+echo "configuring zsh as default shell"
+chsh -s $(which zsh)