remove extra call to beacon--record-vars, add function to move between saved marks

Readme.org

@@ -12,27 +12,26 @@ so you know where it is.
 
 That’s it.
 
-** Customizations
+** Customization Example
 
-- The appearance of the beacon is configured by ~beacon-size~ and
-  ~beacon-color~.
-
-- The duration is configured by ~beacon-blink-duration~ and
-  ~beacon-blink-delay~.
-
-- To customize /when/ the beacon should blink at all, configure
-  ~beacon-blink-when-window-scrolls~,
-  ~beacon-blink-when-window-changes~, and
-  ~beacon-blink-when-point-moves~.
-
-- To prevent the beacon from blinking only on specific situations
-  configure ~beacon-dont-blink-major-modes~,
-  ~beacon-dont-blink-predicates~, or ~beacon-dont-blink-commands~. You
-  can also disable it only in specific buffers by doing
-  ~(setq-local beacon-mode nil)~.
-
-- Beacon can also push the mark for you whenever point moves a long
-  distance. For this, configure ~beacon-push-mark~.
+#+BEGIN_SRC emacs-lisp
+    (use-package beacon
+      :bind* (("<C-i>" . beacon-backward-forward-previous)
+              ("C-o" . beacon-backward-forward-next)
+              ("M-\"" . beacon-blink))
+      ;; go back to point when jumping (beacon-backward-forward-previous，beacon-backward-forward-next)
+      ;; started with keyboard-quit (C-g)
+      :hook after-init
+      :config
+      (setq beacon-color "#00f600"
+            beacon-blink-delay 0.4)
+      (advice-add 'pop-global-mark :around
+                  (defun my/pop-global-mark-display-buffer (pgm)
+                    (interactive)
+                    (cl-letf (((symbol-function 'switch-to-buffer)
+                               #'pop-to-buffer))
+                      (funcall pgm)))))
+#+END_SRC
 
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