replace the term AsciiDoc Python with AsciiDoc.py

modules/ROOT/partials/to-latest-syntax.adoc

@@ -127,7 +127,7 @@ Let's consider an example.
 [caption="Example: "]
 ====
 Assume you want to put italics inside of monospaced text.
-If you want the syntax to work in both Asciidoctor and AsciiDoc Python, you need to do one of the following:
+If you want the syntax to work in both Asciidoctor and AsciiDoc.py, you need to do one of the following:
 
 [loweralpha]
 . Enable the `compat-mode` attribute on the document and enter the text as:

modules/directives/pages/ifdef-ifndef.adoc

@@ -99,7 +99,7 @@ The `ifndef` directive negates the results of the expression.
 ////
 Move this to changelog
 
-WARNING: Starting in Asciidoctor 1.5.6, the operator logic in the `ifndef` directive changed to align with the behavior of AsciiDoc Python.
+WARNING: Starting in Asciidoctor 1.5.6, the operator logic in the `ifndef` directive changed to align with the behavior of AsciiDoc.py.
 Specifically, when attributes are separated by commas, content is only included if none of the attributes are defined.
 When attributes are separated by pluses, content is included if at least one of the attributes is undefined.
 See https://github.com/asciidoctor/asciidoctor/issues/1983[issue #1983] to find the discussion about this behavior and the rationale for the change.