example: move example theme to custom folder

custom/themes/example.zsh-theme

 # Put your custom themes in this folder.
+# Example:
+
+PROMPT="%{$fg[red]%}%n%{$reset_color%}@%{$fg[blue]%}%m %{$fg[yellow]%}%~ %{$reset_color%}%% "

themes/example.zsh-theme

-# Found on the ZshWiki
-#  http://zshwiki.org/home/config/prompt
-#
-
-PROMPT="%{$fg[red]%}%n%{$reset_color%}@%{$fg[blue]%}%m %{$fg[yellow]%}%~ %{$reset_color%}%% "
\ No newline at end of file