Rebuild docs with Python 3 and Sphinx 3.0.2.

docs/Types.rst

@@ -1,4 +1,3 @@
-
 The Blissful Elegance of Typing Joy
 ===================================
 
@@ -2049,6 +2048,11 @@ comments are now already in the form needed for the Python code:
         return (((a2, (a1, s1)), s2), ((a2, (a1, s1)), s2))
 
 
+
+
+
+
+
 .. code:: ipython2
 
     unstack = (S[1], S[0]), S[1]
@@ -2107,6 +2111,7 @@ comments are now already in the form needed for the Python code:
 
 
 
+
 Part VI: Multiple Stack Effects
 -------------------------------
 
@@ -2495,6 +2500,7 @@ This function has to be modified to yield multiple results.
             yield update(result, (f_in, g_out))
 
 
+
 .. code:: ipython2
 
     def meta_compose(F, G):