removing some videos

Author: Ooolab

content/en/tutorials/mcs/mc02.md

@@ -310,8 +310,11 @@ At low temperature the quantum ladder drops steeply due to its spin gap, while t
 - The quantum ladder susceptibility falls much faster than the classical ladder at low $T$. What physical mechanism causes this?
 - Try larger system sizes or different lattices (`"cubic lattice"`, `"triangular lattice"` — see `lattices.xml`). How do the results change?
 
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content/en/tutorials/mcs/mc03.md

@@ -133,9 +133,10 @@ The procedure to combine all results into one plot after running both simulation
 - How does the magnetization depend on the lattice?
 - Bonus: You can also study a 3-leg, 4-leg ladder by changing the parameter W for the width or a spin-1, spin-3/2 chain by changing the parameter local_S. Is there a systematic behavior?
 
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