Include extension on install script, update README

install.sh

@@ -0,0 +1,38 @@
+#!/usr/bin/env bash
+
+if [ -z "$HOME" ]; then
+  echo "Seems you're \$HOMEless :("; exit 1;
+fi
+
+COMMANDS="curl git stow"
+
+for COMMAND in $COMMANDS; do
+  if ! command -v "$COMMAND" &> /dev/null; then
+    echo "Please install $COMMAND";
+    exit 1;
+  fi
+done
+
+DOTFILES=$HOME/.dotfiles
+
+if [ ! -d "$DOTFILES" ]; then
+  git clone git@github.com:joshtronic/dotfiles.git "$DOTFILES"
+  cd "$DOTFILES" || exit
+else
+  cd "$DOTFILES" || exit
+  git pull origin main
+fi
+
+stow alacritty git nvim screen vim zsh
+
+if [[ `uname` == Darwin ]]; then
+  stow macos
+fi
+
+mkdir -p ~/.local/share/vim/undo/
+
+cd "$HOME" || exit
+rm -f "${HOME}/.zcompdump*"
+
+echo
+echo "ENJOY! :)"