added black hat go and secure coding practices guide from checkmarx

README.md

@@ -170,6 +170,17 @@ Learn idiomatic, efficient, clean, and extensible Go design and concurrency patt
 
 Build concurrent, easy-to-maintain responsive applications in Go.
 
+### [Black Hat Go](https://www.nostarch.com/blackhatgo)
+
+[<img src="https://www.nostarch.com/sites/default/files/styles/uc_product_full/public/bhg_cover-front.png" width="120px"/>](https://www.nostarch.com/blackhatgo)
+
+In Black Hat Go, you'll learn how to write powerful and effective penetration testing tools in Go, a language revered for its speed and scalability. Start off with an introduction to Go fundamentals like data types, control structures, and error handling; then, dive into the deep end of Go’s offensive capabilities.
+
+### [Go programming language secure coding practices guide](https://checkmarx.gitbooks.io/go-scp/) *Free*
+
+The main goal of this book is to help developers avoid common mistakes while at the same time, learning a new programming language through a "hands-on approach". This book provides a good level of detail on "how to do it securely" showing what kind of security problems could arise during development.
+
+
 **Web Development**
 ----
 ### [Building Web Apps with Go](https://www.gitbook.com/book/codegangsta/building-web-apps-with-go/details) *Free*