moves stuff around so its not a disaster in the root

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

@@ -0,0 +1,16 @@
+# Grails plugin
+
+This plugin adds completion for the [Grails 2 CLI](https://grails.github.io/grails2-doc/2.5.x/guide/commandLine.html)
+
+To use it, add `grails` to the plugins array in your zshrc file:
+
+```zsh
+plugins=(... grails)
+```
+
+It looks for scripts in the following paths:
+
+- `$GRAILS_HOME/scripts`
+- `~/.grails/scripts`
+- `./scripts`
+- `./plugins/*/scripts`