example: move example theme to custom folder

custom/themes/example.zsh-theme

@@ -1 +1,4 @@
 # 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

@@ -1,5 +0,0 @@
-# Found on the ZshWiki
-#  http://zshwiki.org/home/config/prompt
-#
-
-PROMPT="%{$fg[red]%}%n%{$reset_color%}@%{$fg[blue]%}%m %{$fg[yellow]%}%~ %{$reset_color%}%% "