More fixes

Author: penelopeysm

tutorials/hidden-markov-models/index.qmd

@@ -96,7 +96,7 @@ The priors on our transition matrix are noninformative, using `T[i] ~ Dirichlet(
     N = length(y)
 
     # State sequence.
-    s = tzeros(Int, N)
+    s = zeros(Int, N)
 
     # Emission matrix.
     m = Vector(undef, K)