PDF/EPUB versions free till 2021-12-31

Author: learnbyexample

README.md

@@ -16,7 +16,7 @@ See [Version_changes.md](./Version_changes.md) to keep track of changes made to
 
 # E-book
 
-* You can purchase the pdf/epub versions of the book using these links
+* You can purchase the pdf/epub versions of the book using these links (**currently FREE to download till 31-Dec-2021**)
     * https://leanpub.com/py_regex
         * You might find reduced price using this coupon: https://leanpub.com/py_regex/c/P7erPYAm1386
     * https://learnbyexample.gumroad.com/l/py_regex

interactive_exercises/README.md

@@ -48,7 +48,7 @@ Here's a screenshot to show the difference between these two options:
 
 * Backticks are used in the question descriptions to highlight search and replace terms.
 * User input entered via **Pattern** and **Replace** boxes will always be treated as raw-strings. For this reason, raw-strings are used for the reference solutions as well.
-* These exercise questions have been adapted from my [Python re(gex)?](https://github.com/learnbyexample/py_regular_expressions) ebook (free to read online). See [Exercises.md](https://github.com/learnbyexample/py_regular_expressions/blob/master/exercises/Exercises.md) for all the exercise questions from this book.
+* These exercise questions have been adapted from my [Python re(gex)?](https://github.com/learnbyexample/py_regular_expressions) ebook (free to read online and PDF/EPUB versions are currently free to download till 31-Dec-2021). See [Exercises.md](https://github.com/learnbyexample/py_regular_expressions/blob/master/exercises/Exercises.md) for all the exercise questions from this book.
 
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