moves stuff around so its not a disaster in the root

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

@@ -0,0 +1,15 @@
+# Generic Colouriser plugin
+
+This plugin adds wrappers for commands supported by [Generic Colouriser](https://github.com/garabik/grc):
+
+To use it, add `grc` to the plugins array in your zshrc file:
+
+```zsh
+plugins=(... grc)
+```
+
+## Commands
+
+The plugin sources the bundled alias generator from the installation, available at `/etc/grc.zsh`.
+The complete list of wrapped commands may vary depending on the installed version of `grc`, look
+at the file mentioned above (`/etc/grc.zsh`) to see which commands are wrapped.