little styling tweaks etc in preamble chapters

Author: hjwp

acknowledgments.asciidoc

@@ -1,6 +1,5 @@
 [preface]
-Acknowledgments
----------------
+== Acknowledgments
 
 Lots of people to thank, without whom this book would never have happened,
 and/or would have been even worse than it is.
@@ -80,8 +79,7 @@ and make it up to you in any way I can.
 And finally thanks to you, the latest reader, for deciding to check out
 the book!  I hope you enjoy it.
 
-Additional Thanks for the Second Edition
-~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+=== Additional Thanks for the Second Edition
 
 Thanks to my wonderful editor for the second edition, Nan Barber, and to
 Susan Conant, Kristen Brown, and the whole team at O'Reilly.
@@ -101,3 +99,8 @@ gonulate, Margie Roswell, Ben Elliott, Ramsay Mayka, peterj, 1hx, Wi, Duncan
 Betts, Matthew Senko, Neric "Kasu" Kaz, Dominic Scotto, Andrey Makarov,
 and many, many more.
 
+=== Additional Thanks for the Thid Edition
+
+At the time of writing we'd only just started,
+but thanks in advance to my editor Rita Fernando,
+and thanks to my tech reviewers Csanad and David for volunteering!

chapter_01.asciidoc

@@ -34,7 +34,7 @@ _Only then_ do we go ahead and build some of our app.
 Repeat that to yourself in a goat-like voice.  I know I do.
 
 Another thing about goats is that they take one step at a time.
-That's why they seldom fall off mountains, see, no matter how steep they are.
+That's why they seldom fall off things, see, no matter how steep they are.
 As you can see in <<tree_goat>>.
 
 [[tree_goat]]

part1.asciidoc

@@ -8,36 +8,34 @@
 In this first part, I'm going to introduce the basics of 'Test-Driven
 Development' (TDD). We'll build a real web application from scratch, writing tests first at every stage.
 
-We'll cover functional testing with Selenium, as well as unit testing, and
-see the difference between the two.  I'll introduce the TDD workflow, what
-I call the unit-test/code cycle. We'll also do some refactoring, and see how
-that fits with TDD.  Since it's absolutely essential to serious software 
-engineering, I'll also be using a version control system (Git). We'll discuss
-how and when to do commits and integrate them with the TDD and web development 
-workflow.
-
-We'll be using Django, the Python world's most popular web framework
-(probably).  I've tried to introduce the Django concepts slowly and one at
-a time, and provide lots of links to further reading.  If you're a total
-beginner to Django, I thoroughly recommend taking the time to read them. If
-you find yourself feeling a bit lost, take a couple of hours to go through
-the official Django tutorial (make sure to use the
-https://docs.djangoproject.com/en/1.11/intro/tutorial01/[1.11 version]), and
-then come back to the book.
-
-You'll also get to meet the Testing Goat...
+We'll cover functional testing with Selenium, as well as unit testing,
+and see the difference between the two.
+I'll introduce the TDD workflow, Red/Green/Refactor.
+
+I'll also be using a version control system (Git).
+We'll discuss how and when to do commits and integrate them with the TDD and web development workflow.
+
+We'll be using Django, the Python world's most popular web framework (probably).
+I've tried to introduce the Django concepts slowly and one at a time,
+and provide lots of links to further reading.
+If you're a total beginner to Django, I thoroughly recommend taking the time to read them.
+If you find yourself feeling a bit lost,
+take a couple of hours to go through the https://docs.djangoproject.com/en/4.2/intro/[official Django tutorial]
+and then come back to the book.
+
+In Part 1 you'll also get to meet the Testing Goat...
 
 .Be Careful with Copy and Paste
 [TIP]
 ====
-If you're working from a digital version of the book, it's natural to want to
-copy and paste code listings from the book as you're working through it.  It's
-much better if you don't: typing things in by hand gets them into your muscle
-memory, and just feels much more real. You also inevitably make the occasional
-typo, and debugging them is an important thing to learn.
-
-Quite apart from that, you'll find that the quirks of the PDF format mean
-that weird stuff often happens when you try to copy/paste from it...
+If you're working from a digital version of the book,
+it's natural to want to copy and paste code listings from the book as you're working through it.
+It's much better if you don't: typing things in by hand gets them into your muscle memory,
+and just feels much more real.
+You also inevitably make the occasional typo, and debugging them is an important thing to learn.
+
+Quite apart from that, you'll find that the quirks of the PDF format
+mean that weird stuff often happens when you try to copy/paste from it...
 ====
 
 --