reposition the explanation

Author: Yzi-Li

Doc/library/stdtypes.rst

@@ -4823,7 +4823,11 @@ can be used interchangeably to index the same dictionary entry.
    being added is already present, the value from the keyword argument
    replaces the value from the positional argument.
 
-   To illustrate, the following examples all return a dictionary equal to
+   Providing keyword arguments as in the first example only works for keys that
+   are valid Python identifiers.  Otherwise, any valid keys can be used.
+
+   To illustrate dictionary creation and equality,
+   the following examples all return a dictionary equal to
    ``{"one": 1, "two": 2, "three": 3}``::
 
       >>> a = dict(one=1, two=2, three=3)
@@ -4835,9 +4839,6 @@ can be used interchangeably to index the same dictionary entry.
       >>> a == b == c == d == e == f
       True
 
-   Providing keyword arguments as in the first example only works for keys that
-   are valid Python identifiers.  Otherwise, any valid keys can be used.
-
    Dictionaries preserve insertion order.  Note that updating a key does not
    affect the order.  Keys added after deletion are inserted at the end. ::