Setup `company' in a single section with a single listing

README.org

@@ -1347,21 +1347,6 @@ steps below.
 Finally, [[https://company-mode.github.io/][company: a modular complete-anything framework for Emacs]] provides
 completion in any buffer.
 
-** [[info:company#Top][Company (info)]]
-:PROPERTIES:
-:CUSTOM_ID: sec:company
-:END:
-
-[[info:company#Top][Company (info)]] is a modular completion framework and the the snippet [[lst:ensure-company-installation][below]]
-ensures its installation.
-
-#+caption[Ensure =company= installation]:
-#+caption: Ensure =company= installation.
-#+name: lst:ensure-company-installation
-#+begin_src emacs-lisp -n :results silent
-(ensure-package-installation 'company)
-#+end_src
-
 ** [[info:vertico#Top][Vertico (info)]]
 :PROPERTIES:
 :CUSTOM_ID: sec:vertico-configuration
@@ -1583,18 +1568,19 @@ completion function [[info:elisp#Minibuffer Completion][completing-read]].  List
   (keymap-global-set "M-y" #'consult-yank-pop))
 #+end_src
 
-** [[https://company-mode.github.io/][Company: a modular complete anything framework for Emacs]]
+** [[https://company-mode.github.io/][Company (info)]]
 :PROPERTIES:
 :CUSTOM_ID: sec:company-setup
 :END:
 
-Listing [[lst:setup-company]] configures =company=.
+[[info:company#Top][Company (info)]] is a modular completion framework and listing [[lst:setup-company]]
+configures =company= after ensuring the =company= installation.
 
 #+caption[Setup =company=]:
 #+caption: Setup =company=.
 #+name: lst:setup-company
 #+begin_src emacs-lisp -n :results silent
-(when (fboundp 'company-mode)
+(when (ensure-package-installation 'company)
   ;; https://github.com/purcell/emacs.d/issues/778
   (setopt company-transformers '(company-sort-by-occurrence))
   (dolist (hook '(LaTeX-mode-hook