chore: update challengeType 11 to hidden

curriculum/challenges/english/11-machine-learning-with-python/how-neural-networks-work/deep-learning-demystified.english.md

@@ -2,6 +2,7 @@
 id: 5e9a0e9ef99a403d019610cc
 title: Deep Learning Demystified
 challengeType: 11
+isHidden: true
 videoId: bejQ-W9BGJg
 ---
 

curriculum/challenges/english/11-machine-learning-with-python/how-neural-networks-work/how-convolutional-neural-networks-work.english.md

@@ -2,6 +2,7 @@
 id: 5e9a0e9ef99a403d019610cd
 title: How Convolutional Neural Networks work
 challengeType: 11
+isHidden: true
 videoId: Y5M7KH4A4n4
 ---
 

curriculum/challenges/english/11-machine-learning-with-python/how-neural-networks-work/how-deep-neural-networks-work.english.md

@@ -2,6 +2,7 @@
 id: 5e9a0e9ef99a403d019610ca
 title: How Deep Neural Networks Work
 challengeType: 11
+isHidden: true
 videoId: zvalnHWGtx4
 ---
 

curriculum/challenges/english/11-machine-learning-with-python/how-neural-networks-work/recurrent-neural-networks-rnn-and-long-short-term-memory-lstm.english.md

@@ -2,6 +2,7 @@
 id: 5e9a0e9ef99a403d019610cb
 title: Recurrent Neural Networks RNN and Long Short Term Memory LSTM
 challengeType: 11
+isHidden: true
 videoId: UVimlsy9eW0
 ---