contrib(git): add github-browse-file

* SPC g c b

contrib/git/README.md

@@ -15,6 +15,7 @@
     - [Github support](#github-support)
         - [magit-gh-pulls](#magit-gh-pulls)
         - [gist.el](#gistel)
+        - [github-browse-file](#github-browse-file)
 
 <!-- markdown-toc end -->
 
@@ -225,3 +226,10 @@ In the gist list buffer:
 [git-messenger]: https://github.com/syohex/emacs-git-messenger
 [magit-gh-pulls]: https://github.com/sigma/magit-gh-pulls
 [gist.el]: https://github.com/defunkt/gist.el
+
+### github-browse-file
+
+    Key Binding       |                 Description
+----------------------|------------------------------------------------------------
+<kbd>SPC g f b</kbd>  | browse to file on github
+

contrib/git/packages.el

@@ -14,6 +14,7 @@ which require an initialization must be listed explicitly in the list.")
   (mapc (lambda (x) (push x git-packages))
         '(
           gist
+          github-browse-file
           ;; not up to date
           ;; helm-gist
           magit-gh-pulls
@@ -197,6 +198,13 @@ which require an initialization must be listed explicitly in the list.")
     :init (add-hook 'magit-mode-hook 'turn-on-magit-gh-pulls)
     :config (spacemacs|diminish magit-gh-pulls-mode "Github-PR")))
 
+(defun git/init-github-browse-file ()
+  (use-package github-browse-file
+    :defer t
+    :init
+    (evil-leader/set-key
+      "gfb" 'github-browse-file)))
+
 (defun git/init-magit-gitflow ()
   (use-package magit-gitflow
     :commands turn-on-magit-gitflow