Added 'The Go Programming Language' book to the GoBooks repository (#158)

Co-authored-by: GURUAKASH-KULU <guruakaash@kulu.com>

README.md

@@ -4,6 +4,7 @@
 
 - [Awesome Go Books](#awesome-go-books)
   - [Starter Books](#starter-books)
+    - [2015 - The Go Programming Language](#2015---the-go-programming-language)
     - [2018 - Learning Go *Free*](#2018---learning-go-free)
     - [2018 - Get Programming with Go](#2018---get-programming-with-go)
     - [2019 - API Foundations in Go](#2019---api-foundations-in-go)
@@ -95,6 +96,13 @@
 - [License](#license)
 
 ## Starter Books
+### 2015 - [The Go Programming Language](https://www.gopl.io/)
+
+<a href="https://www.gopl.io/"><img src="https://www.gopl.io/cover.png" width="120px"/></a>
+
+**Authors:** Alan A. A. Donovan and Brian W. Kernighan
+
+Widely regarded as the definitive guide to Go programming, this book offers an in-depth exploration of the language's syntax, data structures, and unique features such as goroutines and channels. Key topics include concurrency, error handling, and best practices in software engineering. Whether you're a developer transitioning from another language or someone seeking to deepen your Go knowledge, this book is an invaluable resource for mastering both foundational and advanced concepts.
 
 ### 2018 - [Learning Go](https://www.miek.nl/go) *Free*