Add to clojure (#50)

* put "Clojure" in correct (sorted) position

* "Clojure in Action" and "Joy of Clojure"

README.md

@@ -772,6 +772,12 @@ The Best Interface Is No Interface: The Simple Path to Brilliant Technology
 - [📕 Beginning c++ through game programming (2004](http://www.goodreads.com/book/show/852335.Beginning_C_Through_Game_Programming)
 - [📖 C++ core guidelines (2017)](https://github.com/isocpp/CppCoreGuidelines/blob/master/CppCoreGuidelines.md)
 
+### Clojure
+
+- [📕 Elements of Clojure (2017)](https://www.goodreads.com/book/show/31159768-elements-of-clojure)
+- [📕 Clojure in Action (2015)](https://www.manning.com/books/clojure-in-action-second-edition)
+- [📕 Joy of Clojure (2014)](https://www.manning.com/books/the-joy-of-clojure-second-edition) - Quite deep, not for beginners, but superb in combination with "Clojure in Action".
+
 ### D
 
 - [📕 The D programming language (2010)](http://amzn.to/1ZTDmqH)
@@ -789,10 +795,6 @@ The Best Interface Is No Interface: The Simple Path to Brilliant Technology
 - [📖 Build web application with golang](https://github.com/astaxie/build-web-application-with-golang/blob/master/en/preface.md)
   - [Multiple Language Versions](https://github.com/astaxie/build-web-application-with-golang#multiple-language-versions)
 
-### Clojure
-
-- [📕 Elements of Clojure (2017)](https://www.goodreads.com/book/show/31159768-elements-of-clojure)
-
 ### Haskell
 
 - [📖 Learn You a Haskell for Great Good! (2011)](http://learnyouahaskell.com/)