Add Open JavaDocs as a clojure til.

README.md

@@ -11,6 +11,7 @@ smart people at [Hashrocket](http://hashrocket.com/).
 
 - [Evaluate One Liners With lein-exec](clojure/evaluate-one-liners-with-lein-exec.md)
 - [Expanding Macros](clojure/expanding-macros.md)
+- [Open JavaDocs](clojure/open-javadocs.md)
 - [Quick Clojure Docs](clojure/quick-clojure-docs.md)
 - [Specify the Directory of a Shell Command](clojure/specify-the-directory-of-a-shell-command.md)
 - [Splitting On Whitespace](clojure/splitting-on-whitespace.md)

clojure/open-javadocs.md

@@ -0,0 +1,17 @@
+# Open JavaDocs
+
+Clojure has all kinds of Java interop including a fancy function called
+`javadoc`. The `javadoc` function _opens a browser window displaying the
+javadoc for the argument_.
+
+Thinking about using Java's `ArrayList` class, but want to read up on it
+first? Try
+
+```
+> (javadoc java.util.ArrayList)
+true
+```
+
+The javadoc page for
+[ArrayList](http://docs.oracle.com/javase/6/docs/api/java/util/ArrayList.html)
+will be opened up in your default browser.