Books link correction

Author: tvalentius

README.md

@@ -105,7 +105,7 @@ Useful articles and learning resources.
 - [Clean Code](https://www.goodreads.com/book/show/3735293-clean-code), by Robert C. Martin
 - [The Pragmatic Programmer](https://www.goodreads.com/book/show/4099.The_Pragmatic_Programmer), by Andy Hunt, Dave Thomas
 - [Cracking the Coding Interview](https://www.goodreads.com/book/show/12544648-cracking-the-coding-interview), by Gayle Laakmann McDowell
-- [The Effective Engineer](goodreads.com/book/show/25238425-the-effective-engineer), by Edmond Lau
+- [The Effective Engineer](https://www.goodreads.com/book/show/25238425-the-effective-engineer), by Edmond Lau
 - [The Developer's Guide to Content Creation](https://www.developersguidetocontent.com/), by Stephanie Morillo
 - [The Developer's Guide to Creating a Successful Blog](https://gumroad.com/l/successfulblog), by  Flavio Copes
 - [Technical Writing for Dummies](http://www.amazon.co.uk/Technical-Writing-Dummies-Sheryl-Lindsell-Roberts/dp/0764553089/ref=sr_1_1?ie=UTF8&s=books&qid=1283958591&sr=8-1), by Sheryl Lindsell-Roberts