Add links

Author: nomeata

podcast/4/links.markdown

@@ -1 +1,21 @@
-TODO
+* [Hakyll](https://jaspervdj.be/hakyll/)
+* [Core Libraries Committee](https://wiki.haskell.org/Core_Libraries_Committee)
+* [GHC Proposals / GHC Steering Committee](https://github.com/ghc-proposals/ghc-proposals)
+* [haskell.org at Google Summer of Code 2021](https://summerofcode.withgoogle.com/archive/2021/organizations/6216810210263040/)
+* [Stylish Haskell](https://github.com/haskell/stylish-haskell)
+* [gofmt](https://pkg.go.dev/cmd/gofmt)
+* [HLint](https://github.com/ndmitchell/hlint#readme)
+* [Ormolu](https://github.com/tweag/ormolu)
+* [blaze-html](https://jaspervdj.be/blaze/)
+* [text](https://github.com/haskell/text)
+* [ICFP Programming Contest 2021](https://icfpcontest2021.github.io/)
+* [diagrams](https://diagrams.github.io/)
+* [gloss](http://gloss.ouroborus.net/)
+* [Beeraffe](https://jaspervdj.be/posts/2019-02-27-beeraffe.html)
+* [Sokyokuban](https://sokyokuban.com)
+* [ImageMagick](https://imagemagick.org/index.php)
+* [PureScript](https://www.purescript.org/)
+* [Elm](https://elm-lang.org/)
+* [GHCJS](https://github.com/ghcjs/ghcjs)
+* [Multi-way if](https://ghc.gitlab.haskell.org/ghc/doc/users_guide/exts/multiway_if.html)
+