Updated GitHub references (j9t → frontenddogma)

Signed-off-by: Jens Oliver Meiert <[email protected]>

Author: j9t

README.md

@@ -11,8 +11,8 @@ In the first versions of _CSS Optimization Basics_, there are probably some erro
 
 As this is an indie book, consider these options:
 
-1. [File an issue](https://github.com/j9t/css-optimization-basics/issues/new) for any problems you find—and get mentioned as a book contributor.
-2. [Submit a pull request](https://github.com/j9t/css-optimization-basics/pulls) for specific fixes and suggestions—and, if accepted, get mentioned as a book contributor, too.
+1. [File an issue](https://github.com/frontenddogma/css-optimization-basics/issues/new) for any problems you find—and get mentioned as a book contributor.
+2. [Submit a pull request](https://github.com/frontenddogma/css-optimization-basics/pulls) for specific fixes and suggestions—and, if accepted, get mentioned as a book contributor, too.
 
 With increasing quality and maturity of the book, the price of ebook may go up (probably only up to the price of [some of Jens’s self-published books](https://www.goodreads.com/author/list/13623828.Jens_Oliver_Meiert)). That still won’t be much for a tech book, even a short one, however. Everyone can always grab the free version or an update here, too; if you purchase a copy, please keep that in mind as book sellers may have different ways of sharing updates.
 

manuscript/book.md

@@ -14,4 +14,4 @@ Contact +1-754-400-0999 or [email protected] for more information.
 
 Follow [Frontend Dogma on Mastodon](https://mas.to/@frontenddogma).
 
-[1.4.26]
+[1.4.27]

manuscript/intro.md

@@ -31,6 +31,6 @@ C> ⁂
 
 The code in this book follows [Google’s HTML/CSS style guide](https://google.github.io/styleguide/htmlcssguide.html). (For an introduction to coding guidelines and commentary on the Google style guide, see [_The Little Book of HTML/CSS Coding Guidelines_](https://www.oreilly.com/library/view/the-little-book/9781492048459/).)
 
-Before we begin, this is a self-published book made with little extra help. If you find mistakes in it, you have all reason to blame me, the author—but also an opportunity to help make the book a little better as a contributor (who are all acknowledged unless chosen otherwise). Please [file an issue](https://github.com/j9t/css-optimization-basics/issues/new) for problems you find, or [submit a pull request](https://github.com/j9t/css-optimization-basics/pulls) for specific fixes and suggestions. If you bought the book [through Leanpub](https://leanpub.com/css-optimization-basics) or [Google Play Books](https://play.google.com/store/books/details/Jens_Oliver_Meiert_CSS_Optimization_Basics?id=xgTfDwAAQBAJ) you should get updates containing your and other people’s fixes automatically. (Otherwise, there’s always [the original source](https://github.com/j9t/css-optimization-basics).)
+Before we begin, this is a self-published book made with little extra help. If you find mistakes in it, you have all reason to blame me, the author—but also an opportunity to help make the book a little better as a contributor (who are all acknowledged unless chosen otherwise). Please [file an issue](https://github.com/frontenddogma/css-optimization-basics/issues/new) for problems you find, or [submit a pull request](https://github.com/frontenddogma/css-optimization-basics/pulls) for specific fixes and suggestions. If you bought the book [through Leanpub](https://leanpub.com/css-optimization-basics) or [Google Play Books](https://play.google.com/store/books/details/Jens_Oliver_Meiert_CSS_Optimization_Basics?id=xgTfDwAAQBAJ) you should get updates containing your and other people’s fixes automatically. (Otherwise, there’s always [the original source](https://github.com/frontenddogma/css-optimization-basics).)
 
 Thank you for your support.