enable eldoc and line numbers

init.el

@@ -24,6 +24,8 @@
 (keymap-global-set "C-c e i" #'hgh/edit-init-file)
 (keymap-global-set "C-,"     #'hgh/duplicate-dwim)
 
+(keymap-global-set "C-h h"   #'eldoc)
+
 (setq
  custom-file "~/.emacs.d/custom.el"
  make-backup-files nil
@@ -46,6 +48,8 @@
 (tool-bar-mode -1)
 (scroll-bar-mode -1)
 (global-hl-line-mode 1)
+(global-eldoc-mode 1)
+(global-display-line-numbers-mode 1)
 
 (defun hgh/untabify-buffer ()
   (interactive)