Another typo (or thinko) in the very first sentence:
"Here we introduce introduction to Boltzmann machines"
More typos (LLMs are really good at finding these):
"Press the "Run Simulation" button to start traininng the RBM." ("traininng" -> "training")
"...we want to derivce the contrastive divergence algorithm..." ("derivce" -> "derive")
"A visisble layer..." ("visisble" -> "visible")
Author here, there was so many typos in first draft that hit hn, all fixed now