Minor gitignore fix.

(Sorry my bad).

.gitignore

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