Move config files to XDG-compatible path

Move config files to XDG-compatible path: `$HOME/.config/emacs`.

.config/emacs/config/git.el

@@ -0,0 +1,20 @@
+(use-package magit
+  :ensure t
+  :init
+  ;; (taken from :open https://r0tty.org/git/dotfiles/emacs/tree/.emacs.d/config/development.el)
+  (defun vcsh (repo)
+    "Invoke magit on a vcsh repo. This requires an appropriate entry in `tramp-methods'."
+    (interactive (let ((repos (delq nil
+                                    (mapcar #'(lambda (name)
+                                                (if (string-match ".git$" name)
+                                                    (substring name 0 -4)
+                                                  nil))
+                                            (directory-files "~/.config/vcsh/repo.d")))))
+                   (list (completing-read "Repository: " repos nil t))))
+    (magit-status-internal (format "/vcsh:%s:" repo)))
+  :config
+  ;; Turn on flyspell when writing commit messages
+  (add-hook 'git-commit-setup-hook 'git-commit-turn-on-flyspell))
+
+(use-package git-timemachine
+  :ensure t)