updated acknowledgements, added chapter names for exercises

Author: learnbyexample

Exercise_solutions.md

@@ -1,3 +1,7 @@
+# Exercise solutions
+
+<br>
+
 # RegExp introduction
 
 **a)** Check if the given input strings contain `two` irrespective of case.

Exercises.md

@@ -1,7 +1,11 @@
-# RegExp introduction
+# Exercises
 
 >![info](images/info.svg) For solutions, see [Exercise_solutions.md](https://github.com/learnbyexample/learn_js_regexp/blob/master/Exercise_solutions.md).
 
+<br>
+
+# RegExp introduction
+
 **a)** Check if the given input strings contain `two` irrespective of case.
 
 ```js

README.md

@@ -27,7 +27,7 @@ For a preview of the book, see [sample chapters](https://github.com/learnbyexamp
 
 The book can also be [viewed as a single markdown file in this repo](./js_regexp.md). See my blogpost on [generating pdf from markdown using pandoc](https://learnbyexample.github.io/tutorial/ebook-generation/customizing-pandoc/) if you are interested in the ebook creation process.
 
-For online `html` version of the book, visit https://learnbyexample.github.io/learn_js_regexp/
+For web version of the book, visit https://learnbyexample.github.io/learn_js_regexp/
 
 <br>
 
@@ -71,7 +71,9 @@ Twitter: https://twitter.com/learn_byexample
 * [tex.stackexchange](https://tex.stackexchange.com/) — for help on `pandoc` and `tex` related questions
 * Cover image: [LibreOffice Draw](https://www.libreoffice.org/discover/draw/) and [regulex](https://jex.im/regulex)
 * [Warning](https://commons.wikimedia.org/wiki/File:Warning_icon.svg) and [Info](https://commons.wikimedia.org/wiki/File:Info_icon_002.svg) icons by [Amada44](https://commons.wikimedia.org/wiki/User:Amada44) under public domain
-* [mdBook](https://github.com/rust-lang/mdBook) — for `html` version of the book
+* [mdBook](https://github.com/rust-lang/mdBook) — for web version of the book
+    * [mdBook-pagetoc](https://github.com/JorelAli/mdBook-pagetoc) — for adding table of contents for each chapter
+    * [minify-html](https://github.com/wilsonzlin/minify-html) — for minifying html files
 
 <br>