Document license(), credits() and copyright()

Doc/library/constants.rst

@@ -114,10 +114,10 @@ should not be used in programs.
           credits
 
    Objects that when printed or called, print the text of copyright or
-   credits, respectively.
+   credits, respectively (see :func:`copyright` and :func:`credits`).
 
 .. data:: license
 
    Object that when printed, prints the message "Type license() to see the
    full license text", and when called, displays the full license text in a
-   pager-like fashion (one screen at a time).
+   pager-like fashion (see :func:`license`).

Doc/library/functions.rst

@@ -456,6 +456,20 @@ are always available.  They are listed here in alphabetical order.
       deprecated; it should only be passed as a single positional argument.
 
 
+.. function:: copyright()
+
+   Print the full :data:`copyright` text.
+
+   This function is added to the built-in namespace by the :mod:`site` module.
+
+
+.. function:: credits()
+
+   Print the full :data:`credits` text.
+
+   This function is added to the built-in namespace by the :mod:`site` module.
+
+
 .. function:: delattr(object, name, /)
 
    This is a relative of :func:`setattr`.  The arguments are an object and a
@@ -1141,6 +1155,14 @@ are always available.  They are listed here in alphabetical order.
       :data:`sys.maxsize`, such as :class:`range(2 ** 100) <range>`.
 
 
+.. function:: license()
+
+   Displays the full license text in a pager-like fashion (one page at a time;
+   this function is intended for interactive use).
+
+   This function is added to the built-in namespace by the :mod:`site` module.
+
+
 .. _func-list:
 .. class:: list(iterable=(), /)
    :noindex: