Stop org-src from messing up window layout

config.org

@@ -151,6 +151,14 @@ needs to be set up to install them if they aren't already.
      (setq org-confirm-babel-evaluate nil)
    #+end_src
 
+   Another annoying thing that happens by default is the clobbering of
+   the window layout when you open a source block. You can change that
+   by setting [[help:org-src-window-setup][org-src-window-setup]].
+
+   #+begin_src emacs-lisp
+     (setq org-src-window-setup 'split-window-below)
+   #+end_src
+
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