Update .~ syntax

Author: penelopeysm

core-functionality/index.qmd

@@ -475,7 +475,10 @@ Example usage:
     k = length(unique(g))
     a ~ filldist(Exponential(), k) # = Product(fill(Exponential(), k))
     mu = a[g]
-    return x .~ Normal.(mu)
+    for i in eachindex(x)
+        x[i] ~ Normal(mu[i])
+    end
+    return mu
 end
 ```
 
@@ -491,7 +494,10 @@ Example usage:
     k = length(unique(g))
     a ~ arraydist([Exponential(i) for i in 1:k])
     mu = a[g]
-    return x .~ Normal.(mu)
+    for i in eachindex(x)
+        x[i] ~ Normal(mu[i])
+    end
+    return mu
 end
 ```