[MagicSquareGame] Remove broken link from resources (#879)

MagicSquareGame/MagicSquareGame.ipynb

@@ -22,7 +22,6 @@
     "\n",
     "* You can read more about Mermin-Peres magic square game [on Wikipedia](https://en.wikipedia.org/wiki/Quantum_pseudo-telepathy#The_Mermin-Peres_magic_square_game).\n",
     "* It is also described in Exercise 4 from the [assignment](http://edu.itp.phys.ethz.ch/fs13/atqit/sol01.pdf) from Advanced Topics in Quantum Information Theory course by Christandl and Renner.\n",
-    "* And in a [blog post](http://twistedoakstudios.com/blog/Post6536_implementing-quantum-pseudo-telepathy) by Craig Gidney.\n",
     "\n",
     "Each task is wrapped in one operation preceded by the description of the task.\n",
     "Your goal is to fill in the blanks (marked with the `// ...` comments)\n",

MagicSquareGame/README.md

@@ -14,7 +14,6 @@ You can [run the MagicSquareGame kata as a Jupyter Notebook](https://mybinder.or
 
 * [Mermin-Peres magic square game on Wikipedia](https://en.wikipedia.org/wiki/Quantum_pseudo-telepathy#The_Mermin-Peres_magic_square_game).
 * Exercise 4 from the [assignment](http://edu.itp.phys.ethz.ch/fs13/atqit/sol01.pdf) from Advanced Topics in Quantum Information Theory course by Christandl and Renner.
-* A [blog post](http://twistedoakstudios.com/blog/Post6536_implementing-quantum-pseudo-telepathy) by Craig Gidney.
 
 #### Q#