update cs config and rust auto-completions

exact_dot_oh-my-zsh/exact_plugins/exact_direnv/README.md

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+# direnv plugin
+
+This plugin creates the [Direnv](https://direnv.net/) hook.
+
+To use it, add `direnv` to the plugins array in your zshrc file:
+
+```zsh
+plugins=(... direnv)
+```
+
+## Requirements
+
+In order to make this work, you will need to have the direnv installed.
+
+More info on the usage and install: https://github.com/direnv/direnv