Add adoc-mode and outline-minor-mode

init.org

@@ -2365,12 +2365,20 @@ SLIME opens CLHS links in Firefox, but I'd rather open them in Tor Browser; Tor
         ("M-c" . git-commit-prev-message)
         ("M-r" . git-commit-next-message)))
 #+END_SRC
-** mediawiki-mode
+** markup
+*** mediawiki-mode
 #+BEGIN_SRC emacs-lisp
 (use-package mediawiki
   :commands mediawiki-mode)
 
 #+END_SRC
+*** asciidoc-mode
+Used by Eldev documentation.
+#+BEGIN_SRC emacs-lisp
+(use-package adoc-mode
+  :mode "\\.adoc$")
+#+END_SRC
+
 ** midnight-mode
 #+BEGIN_SRC emacs-lisp
 (use-package midnight
@@ -2905,6 +2913,17 @@ pjb suggested a different approach [[http://paste.lisp.org/display/10157][here]]
   :commands (wgrep-change-to-wgrep-mode))
 #+END_SRC
 
+** outline-minor-mode
+#+BEGIN_SRC emacs-lisp
+(use-package outline
+  :hook (asciidoc-mode . outline-minor-mode)
+  :bind (:map outline-minor-mode-map
+              ("TAB" . outline-toggle-children)
+              ;; this (rather than `outline-show-children') seems to
+              ;; be the equivalent of `org-show-subtree'
+              ("C-c C-k" . outline-show-branches)))
+#+END_SRC
+
 ** custom.el
 #+BEGIN_SRC emacs-lisp
 (setq custom-file "~/.emacs.d/custom.el")