moves stuff around so its not a disaster in the root

configs/zsh/ohmyzsh/plugins/stack/README.md

@@ -0,0 +1,9 @@
+# Stack
+
+This plugin provides completion for [Stack](https://haskellstack.org).
+
+To use it add stack to the plugins array in your zshrc file.
+
+```bash
+plugins=(... stack)
+```

configs/zsh/ohmyzsh/plugins/stack/stack.plugin.zsh

@@ -0,0 +1,4 @@
+(( $+commands[stack] )) || return
+
+autoload -U +X bashcompinit && bashcompinit
+source <(stack --bash-completion-script stack)