Update README.md with missing languages

Also sort lists, document which filetypes support Prettier, and match
the AutoFormatBuffer example to the language list.

README.md

@@ -1,46 +1,53 @@
 [![Travis Build Status](https://travis-ci.org/google/vim-codefmt.svg?branch=master)](https://travis-ci.org/google/vim-codefmt)
 
-codefmt is a utility for syntax-aware code formatting.  It contains several
+codefmt is a utility for syntax-aware code formatting. It contains several
 built-in formatters, and allows new formatters to be registered by other
 plugins.
 
 For details, see the executable documentation in the `vroom/` directory or the
-helpfiles in the `doc/` directory. The helpfiles are also available via
-`:help codefmt` if codefmt is installed (and helptags have been generated).
+helpfiles in the `doc/` directory. The helpfiles are also available via `:help
+codefmt` if codefmt is installed (and helptags have been generated).
 
 # Supported File-types
 
-* [Bazel](https://www.github.com/bazelbuild/bazel) BUILD files (buildifier)
-* C, C++ (clang-format)
-* [Clojure](https://clojure.org/) ([zprint](https://github.com/kkinnear/zprint),
-  [cljstyle](https://github.com/greglook/cljstyle))
-* CSS, Sass, SCSS, Less (js-beautify)
-* Dart (dartfmt)
-* Fish ([fish_indent](https://fishshell.com/docs/current/commands.html#fish_indent))
-* Go (gofmt)
-* [GN](https://www.chromium.org/developers/gn-build-configuration) (gn)
-* Haskell ([ormolu](https://github.com/tweag/ormolu))
-* HTML (js-beautify)
-* Java (google-java-format or clang-format)
-* JavaScript (clang-format or [prettier](https://prettier.io))
-* JSON (js-beautify)
-* Kotlin ([ktfmt](https://github.com/facebookincubator/ktfmt))
-* OCaml ([ocamlformat](https://github.com/ocaml-ppx/ocamlformat))
-* Proto (clang-format)
-* Python (Autopep8, Black, or YAPF)
-* Ruby ([rubocop](https://rubocop.org))
-* Rust ([rustfmt](https://github.com/rust-lang/rustfmt))
-* TypeScript (clang-format)
-* Shell (shfmt)
-* [Vue](http://vuejs.org) (prettier)
-* Nix (nixpkgs-fmt)
-* Swift ([swift-format](https://github.com/apple/swift-format))
+*   [Bazel](https://www.github.com/bazelbuild/bazel) BUILD files (buildifier)
+*   C, C++ (clang-format)
+*   [Clojure](https://clojure.org/)
+    ([zprint](https://github.com/kkinnear/zprint),
+    [cljstyle](https://github.com/greglook/cljstyle))
+*   CSS, Sass, SCSS, Less (js-beautify, prettier)
+*   Dart (dartfmt)
+*   Elixir ([`mix format`](https://hexdocs.pm/mix/main/Mix.Tasks.Format.html))
+*   Fish
+    ([fish_indent](https://fishshell.com/docs/current/commands.html#fish_indent))
+*   [GN](https://www.chromium.org/developers/gn-build-configuration) (gn)
+*   Go (gofmt)
+*   Haskell ([ormolu](https://github.com/tweag/ormolu))
+*   HTML (js-beautify, prettier)
+*   Java (google-java-format or clang-format)
+*   JavaScript (clang-format, js-beautify, or [prettier](https://prettier.io))
+*   JSON (js-beautify)
+*   Jsonnet ([jsonnetfmt](https://jsonnet.org/learning/tools.html))
+*   Julia ([JuliaFormatter](https://github.com/domluna/JuliaFormatter.jl))
+*   Kotlin ([ktfmt](https://github.com/facebookincubator/ktfmt))
+*   Lua
+    ([FormatterFiveOne](https://luarocks.org/modules/ElPiloto/formatterfiveone)
+*   Markdown (prettier)
+*   Nix (nixpkgs-fmt)
+*   OCaml ([ocamlformat](https://github.com/ocaml-ppx/ocamlformat))
+*   Protocol Buffers (clang-format)
+*   Python (Autopep8, Black, isort, or YAPF)
+*   Ruby ([rubocop](https://rubocop.org))
+*   Rust ([rustfmt](https://github.com/rust-lang/rustfmt))
+*   Shell (shfmt)
+*   Swift ([swift-format](https://github.com/apple/swift-format))
+*   TypeScript (clang-format)
+*   [Vue](http://vuejs.org) (prettier)
 
 # Commands
 
-Use `:FormatLines` to format a range of lines or use `:FormatCode` to format
-the entire buffer. Use `:NoAutoFormatBuffer` to disable current buffer
-formatting.
+Use `:FormatLines` to format a range of lines or use `:FormatCode` to format the
+entire buffer. Use `:NoAutoFormatBuffer` to disable current buffer formatting.
 
 # Usage example
 
@@ -78,8 +85,8 @@ Glaive codefmt plugin[mappings]
 Glaive codefmt google_java_executable="java -jar /path/to/google-java-format-VERSION-all-deps.jar"
 ```
 
-Make sure you have updated maktaba recently. Codefmt depends upon maktaba
-to register formatters.
+Make sure you have updated maktaba recently. Codefmt depends upon maktaba to
+register formatters.
 
 # Autoformatting
 
@@ -89,27 +96,38 @@ Want to just sit back and let autoformat happen automatically? Add this to your
 ```vim
 augroup autoformat_settings
   autocmd FileType bzl AutoFormatBuffer buildifier
-  autocmd FileType c,cpp,proto,javascript,arduino AutoFormatBuffer clang-format
+  autocmd FileType c,cpp,proto,javascript,typescript,arduino AutoFormatBuffer clang-format
+  autocmd FileType clojure AutoFormatBuffer cljstyle
   autocmd FileType dart AutoFormatBuffer dartfmt
-  autocmd FileType go AutoFormatBuffer gofmt
+  autocmd FileType elixir,eelixir,heex AutoFormatBuffer mixformat
+  autocmd FileType fish AutoFormatBuffer fish_indent
   autocmd FileType gn AutoFormatBuffer gn
+  autocmd FileType go AutoFormatBuffer gofmt
+  autocmd FileType haskell AutoFormatBuffer ormolu
+  " Alternative for web languages: prettier
   autocmd FileType html,css,sass,scss,less,json AutoFormatBuffer js-beautify
   autocmd FileType java AutoFormatBuffer google-java-format
+  autocmd FileType jsonnet AutoFormatBuffer jsonnetfmt
+  autocmd FileType julia AutoFormatBuffer JuliaFormatter
+  autocmd FileType kotlin AutoFormatBuffer ktfmt
+  autocmd FileType lua AutoFormatBuffer luaformatterfiveone
+  autocmd FileType markdown AutoFormatBuffer prettier
+  autocmd FileType ocaml AutoFormatBuffer ocamlformat
   autocmd FileType python AutoFormatBuffer yapf
   " Alternative: autocmd FileType python AutoFormatBuffer autopep8
+  autocmd FileType ruby AutoFormatBuffer rubocop
   autocmd FileType rust AutoFormatBuffer rustfmt
-  autocmd FileType vue AutoFormatBuffer prettier
   autocmd FileType swift AutoFormatBuffer swift-format
+  autocmd FileType vue AutoFormatBuffer prettier
 augroup END
 ```
 
 # Configuring formatters
 
 Most formatters have some options available that can be configured via
-[Glaive](https://www.github.com/google/vim-glaive)
-You can get a quick view of all codefmt flags by executing `:Glaive codefmt`, or
-start typing flag names and use tab completion. See `:help Glaive` for usage
-details.
+[Glaive](https://www.github.com/google/vim-glaive) You can get a quick view of
+all codefmt flags by executing `:Glaive codefmt`, or start typing flag names and
+use tab completion. See `:help Glaive` for usage details.
 
 # Installing formatters
 
@@ -127,25 +145,22 @@ vroom/FORMATTER-NAME.vroom to learn more about usage for individual formatters.
 ## Creating a New Formatter
 
 Assume a filetype `myft` and a formatter called `MyFormatter`. Our detailed
-guide to creating a formatter [lives
-here](https://github.com/google/vim-codefmt/wiki/Formatter-Integration-Guide).
+guide to creating a formatter
+[lives here](https://github.com/google/vim-codefmt/wiki/Formatter-Integration-Guide).
 
 *   Create an issue for your new formatter and discuss!
 
 *   Create a new file in `autoload/codefmt/myformatter.vim` See
-    `autoload/codefmt/buildifier.vim for an example. This is where all the
-    logic for formatting goes.
+    `autoload/codefmt/buildifier.vim for an example. This is where all the logic
+    for formatting goes.
 
-*   Register the formatter in
-    [plugin/register.vim](plugin/register.vim)
-    with:
+*   Register the formatter in [plugin/register.vim](plugin/register.vim) with:
 
     ```vim
     call s:registry.AddExtension(codefmt#myformatter#GetFormatter())
     ```
 
-*   Create a flag in
-    [instant/flags.vim](instant/flags.vim)
+*   Create a flag in [instant/flags.vim](instant/flags.vim)
 
     ```vim
     ""