correct description

Author: foldfelis

README.md

@@ -43,14 +43,15 @@ As for model, there are `FourierNeuralOperator` and `MarkovNeuralOperator` provi
 
 ```julia
 model = Chain(
-    # project finite-dimensional data to infinite-dimensional space
+    # lift (d + 1)-dimensional vector field to n-dimensional vector field
+    # here, d == 1 and n == 64
     Dense(2, 64),
     # operator projects data between infinite-dimensional spaces
     FourierOperator(64=>64, (16, ), gelu),
     FourierOperator(64=>64, (16, ), gelu),
     FourierOperator(64=>64, (16, ), gelu),
     FourierOperator(64=>64, (16, )),
-    # project infinite-dimensional function to finite-dimensional space
+    # project back to the scalar field of interest space
     Dense(64, 128, gelu),
     Dense(128, 1),
     flatten