Update README.md

Author: abhi99555

README.md

@@ -6,17 +6,17 @@ The book is posted (in both html and pdf formats)  on the web page https://intro
 Please use the [issues](https://github.com/boazbk/tcs/issues) and [pull requests](https://github.com/boazbk/tcs/pulls) to post any suggestions, comments, typo fixes, etc.
 
 
-There are two chapters that are still missing: space bounded computation and proofs and programs.
+There are two chapters that are still missing: space bounded computation & proofs and programs.
 
 Supplemental code for the book is on [github.com/boazbk/tcscode](https://github.com/boazbk/tcscode)
 
 
-I am producing the book from the markdown source using 
+I am producing this book from the markdown source using 
 [Pandoc](https://pandoc.org/). 
 The templates for the LaTeX and HTML versions are derived from   [Tufte LaTeX](https://tufte-latex.github.io/tufte-latex/), [Gitbook](https://www.gitbook.com/) and [Bookdown](https://bookdown.org/). You can see the [following respository](https://github.com/boazbk/panbook)  for some of the templates, scripts and  [panflute](http://scorreia.com/software/panflute/) filter I am using.
 
 
 This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. To view a copy of this license, visit https://creativecommons.org/licenses/by-nc-nd/4.0/ or send a letter to Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.
 
-While this text will remain freely and publicly available, I may also create a printed book version in the future.
+While this text will remain freely and publicly available, I might create a printed book version in the future.
 By making any contribution to this work, such as a typo fix or any other suggestion or edit, you are assigning me the rights to use your contribution in both the online or any other version of this work.