gitignore fix for custom folder.

.gitignore

@@ -1,8 +1,9 @@
 locals.zsh
 log/.zsh_history
 projects.zsh
-custom/example
-custom/example.zsh
+-custom/*
+-!custom/example
+-!custom/example.zsh
 *.swp
 !custom/example.zshcache
 cache/