updated book list

Author: learnbyexample

README.md

@@ -19,7 +19,6 @@ Free to read online versions:
 * [CLI text processing with GNU Coreutils](https://learnbyexample.github.io/cli_text_processing_coreutils/)
 * [Vim Reference Guide](https://learnbyexample.github.io/vim_reference/)
 * [Linux Command Line Computing](https://learnbyexample.github.io/cli-computing/)
-* [Command line text processing with Rust tools](https://learnbyexample.github.io/cli_text_processing_rust/) — work-in-progress
 
 🛈 💰 You can buy PDF/EPUB versions from [Gumroad](https://learnbyexample.gumroad.com/) or [Leanpub](https://leanpub.com/u/learnbyexample)
 
@@ -34,6 +33,7 @@ Free to read online versions:
 * [Python Basics](https://github.com/learnbyexample/Python_Basics) — older version of *100 Page Python Intro*
 * [Ruby Scripting](https://github.com/learnbyexample/Ruby_Scripting) — examples based tutorial for Ruby scripting
 * [Perl Introduction](https://github.com/learnbyexample/Perl_intro) — Introductory course for Perl 5 through examples, geared towards VLSI engineers
+* [Command line text processing with Rust tools](https://learnbyexample.github.io/cli_text_processing_rust/) — modern CLI tools for text processing
 
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