dev: Add deadgrep in order to use ripgrep

Add the deadgrep mode together with a keybinding in order to call
ripgrep from emacs.

.emacs.d/config/dev.el

@@ -17,6 +17,11 @@
              ;; Turn on flyspell when writing commit messages
              (add-hook 'git-commit-setup-hook 'git-commit-turn-on-flyspell))
 
+;; use ripgrep in emacs
+(use-package deadgrep
+  :ensure t
+  :bind ("M-s d" . deadgrep))
+
 ;; rust
 (use-package cargo :ensure t)
 (use-package cargo-mode :ensure t)