Made install script check if the files exitst before installing them

zshrc

@@ -1,11 +1,11 @@
 # Path to your oh-my-zsh configuration.
-ZSH=/home/tim/.oh-my-zsh
+ZSH=~/.dotfiles/oh-my-zsh
 
 # Set name of the theme to load.
 # Look in ~/.oh-my-zsh/themes/
 # Optionally, if you set this to "random", it'll load a random theme each
 # time that oh-my-zsh is loaded.
-ZSH_THEME="dx"
+ZSH_THEME="example"
 
 # Example aliases
 # alias zshconfig="mate ~/.zshrc"