docs(:tools): update READMEs to new format

modules/tools/tmux/README.org

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+← [[doom-module-index:][Back to module index]]               ↙ [[doom-module-issues:::tools tmux][Issues]]  ↖ [[doom-module-source:tools/tmux][Source]]  ± [[doom-suggest-edit:][Suggest edits]]  ? [[doom-help-modules:][Help]]
+--------------------------------------------------------------------------------
+#+TITLE:    :tools tmux
+#+SUBTITLE: From one multiplexer to another
+#+CREATED:  October 15, 2021
+#+SINCE:    21.12.0
+
+* Description :unfold:
+This module provides an API for talking to Tmux sessions.
+
+** Maintainers
+/This module has no dedicated maintainers./ [[doom-contrib-maintainer:][Become a maintainer?]]
+
+** Module flags
+/This module has no flags./
+
+** Packages
+/This module doesn't install any packages./
+
+** Hacks
+/No hacks documented for this module./
+
+** TODO Changelog
+# This section will be machine generated. Don't edit it by hand.
+/This module does not have a changelog yet./
+
+* Installation
+[[id:01cffea4-3329-45e2-a892-95a384ab2338][Enable this module in your ~doom!~ block.]]
+
+/This module has no external requirements./
+
+* 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