diff --git a/README.md b/README.md
index a21c689..5aaf99d 100644
--- a/README.md
+++ b/README.md
@@ -142,7 +142,7 @@
 
 * [**JavaScript**: _WTF is JSX (Let's Build a JSX Renderer)_](https://jasonformat.com/wtf-is-jsx/)
 * [**JavaScript**: _A DIY guide to build your own React_](https://github.com/hexacta/didact)
-* [**JavaScript**: _Reverse Engineering React_](https://vimeo.com/album/3930691)
+* [**JavaScript**: _Reverse Engineering React_](https://vimeo.com/album/3930691) [video]
 * [**JavaScript**: _Building React From Scratch_](https://www.youtube.com/watch?v=_MAD4Oly9yg) [video]
 * [**JavaScript**: _Building Your Own React Clone in Five Easy Steps_](https://blog.javascripting.com/2016/10/05/building-your-own-react-clone-in-five-easy-steps/)
 * [**JavaScript**: _Gooact: React in 160 lines of JavaScript_](https://medium.com/@sweetpalma/gooact-react-in-160-lines-of-javascript-44e0742ad60f)
@@ -150,7 +150,7 @@
 * [**JavaScript**: _Build your own Vuejs_](https://github.com/jsrebuild/build-your-own-vuejs)
 * [**JavaScript**: _Build Yourself a Redux_](https://zapier.com/engineering/how-to-build-redux/)
 * [**JavaScript**: _Let’s Write Redux!_](https://www.jamasoftware.com/blog/lets-write-redux/)
-* [**JavaScript**: _Redux: Implementing Store from Scratch_](https://egghead.io/lessons/react-redux-implementing-store-from-scratch)
+* [**JavaScript**: _Redux: Implementing Store from Scratch_](https://egghead.io/lessons/react-redux-implementing-store-from-scratch) [video]
 * [**JavaScript**: _Build Your own Simplified AngularJS in 200 Lines of JavaScript_](https://blog.mgechev.com/2015/03/09/build-learn-your-own-light-lightweight-angularjs/)
 * [**JavaScript**: _Make Your Own AngularJS_](http://teropa.info/blog/2013/11/03/make-your-own-angular-part-1-scopes-and-digest.html)
 * [**JavaScript**: _How to write your own Virtual DOM_](https://medium.com/@deathmood/how-to-write-your-own-virtual-dom-ee74acc13060)
@@ -189,7 +189,7 @@
 * [**Lua**: _BYTEPATH_](https://github.com/SSYGEN/blog/issues/30)
 * [**Python**: _Developing Games With PyGame_](https://pythonprogramming.net/pygame-python-3-part-1-intro/)
 * [**Python**: _Making Games with Python & Pygame_](https://inventwithpython.com/makinggames.pdf) [pdf]
-* [**Python**: _The Complete Roguelike Tutorial_](https://www.youtube.com/playlist?list=PLKUel_nHsTQ1yX7tQxR_SQRdcOFyXfNAb)
+* [**Python**: _The Complete Roguelike Tutorial_](https://www.youtube.com/playlist?list=PLKUel_nHsTQ1yX7tQxR_SQRdcOFyXfNAb) [video]
 * [**Ruby**: _Developing Games With Ruby_](https://leanpub.com/developing-games-with-ruby/read)
 
 #### Build your own `Git`