lang/org: mention org-roam's sqlite3 dependency

modules/lang/org/README.org

@@ -70,7 +70,8 @@ https://www.mfoot.com/blog/2015/11/22/literate-emacs-configuration-with-org-mode
 + =+pomodoro= Enables a pomodoro timer for clocking time on tasks.
 + =+present= Enables integration with reveal.js, beamer and org-tree-slide, so
   Emacs can be used for presentations.
-+ =+roam= Enables org-roam integration.
++ =+roam= Enables org-roam integration. This requires ~sqlite3~ to be installed
+  on your system.
 
 ** Plugins
 + [[https://github.com/hniksic/emacs-htmlize][htmlize]]
@@ -162,12 +163,13 @@ https://www.mfoot.com/blog/2015/11/22/literate-emacs-configuration-with-org-mode
 Org has a few soft dependencies that you will need to make use of Org's more
 esoteric features:
 
-+ For inline LaTeX previews, you need ~latex~ and ~dvipng~.
-+ For rendering GNUPlot images (with =+gnuplot= flag) you need the ~gnuplot~
-  program installed.
-+ To run babel code blocks, you need whatever dependencies those languages need.
-  It is recommended you enable the associated =:lang= module and ensure its
-  dependencies are met, e.g. install the =ruby= executable for ruby support.
++ For inline LaTeX previews, ~latex~ and ~dvipng~ is needed.
++ To render GNUPlot images (with =+gnuplot= flag) the ~gnuplot~ program is
+  needed.
++ To execute babel code blocks, you need whatever dependencies those languages
+  need. It is recommended you enable the associated =:lang= module and ensure
+  its dependencies are met, e.g. install the =ruby= executable for ruby support.
++ =org-roam= (with the =+roam= flag) requires =sqlite3= to be installed.
 
 ** MacOS
 #+BEGIN_SRC sh