Add readme and sync script

README.md

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+# mitchell's dotfiles
+
+This mostly exists for my convenient bootstrapping onto new systems, but it should be generalized
+enough for anyone to use it.
+
+This repo contains my preferred configurations for:
+- fish shell
+- vim
+- tmux
+- git
+
+Which also implies they are all dependencies to use the whole configuration.
+
+Other dependencies:
+- rsync (for sync script)
+- curl (for fisher pkg manager)
+
+To use all of the configurations:
+1. Clone this repo with the `--recurse-submodules` flag.
+1. `cd` into this repo and run the `sync` script (requires fish).
+1. If you haven't already either run `fish` or change your default shell by adding the result of
+   `which fish` to `/etc/shells` and running `chsh -s /path/to/fish yourusername` and restart the
+   terminal.
+1. Once using fish run `fisher` to install all fish plugins.
+1. Enjoy!

sync

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+#!/usr/bin/env fish
+
+echo 'Syncing configuration files to your home dir...'
+
+rsync -aP ./.config/fish ~/.config/
+rsync -aP ./.gitconfig ~/
+rsync -aP ./.tmux* ~/
+rsync -aP ./.vim* ~/
+
+echo 'Done syncing.'