docs(:lang): update READMEs to new format

modules/lang/lean/README.org

@@ -0,0 +1,56 @@
+← [[doom-module-index:][Back to module index]]               ↙ [[doom-module-issues:::lang lean][Issues]]  ↖ [[doom-module-source:lang/lean][Source]]  ± [[doom-suggest-edit:][Suggest edits]]  ? [[doom-help-modules:][Help]]
+--------------------------------------------------------------------------------
+#+TITLE:    :lang lean
+#+SUBTITLE: For folks with too much to prove
+#+CREATED:  September 10, 2019
+#+SINCE:    21.12.0 (#1759)
+
+* Description :unfold:
+This module adds support for the [[https://leanprover.github.io/about/][Lean programming language]] to Doom Emacs.
+
+** Maintainers
+/This module has no dedicated maintainers./ [[doom-contrib-maintainer:][Become a maintainer?]]
+
+** Module flags
+/This module has no flags./
+
+** Packages
+- [[doom-package:][lean-mode]]
+- [[doom-package:][company-lean]] if [[doom-module:][:completion company]]
+
+** TODO Hacks
+#+begin_quote
+🔨 This module's hacks haven't been documented yet. [[doom-contrib-module:][Document them?]]
+#+end_quote
+
+** TODO Changelog
+# This section will be machine generated. Don't edit it by hand.
+/This module does not have a changelog yet./
+
+* TODO Installation
+[[id:01cffea4-3329-45e2-a892-95a384ab2338][Enable this module in your ~doom!~ block.]]
+
+#+begin_quote
+🔨 /This module's prerequisites are not documented./ [[doom-contrib-module:][Document them?]]
+#+end_quote
+
+* TODO Usage
+#+begin_quote
+🔨 This module has no usage documentation yet. [[doom-contrib-module:][Write some?]]
+#+end_quote
+
+* TODO Configuration
+#+begin_quote
+🔨 This module has no configuration documentation yet. [[doom-contrib-module:][Write some?]]
+#+end_quote
+
+* Troubleshooting
+/There are no known problems with this module./ [[doom-report:][Report one?]]
+
+* Frequently asked questions
+/This module has no FAQs yet./ [[doom-suggest-faq:][Ask one?]]
+
+* TODO Appendix
+#+begin_quote
+🔨 This module has no appendix yet. [[doom-contrib-module:][Write one?]]
+#+end_quote