Merge pull request #1 from dbushenko/master

Section ##Usage added

Author: purcell

README.md

@@ -43,3 +43,31 @@ or by adding this bit of Emacs Lisp code to your Emacs initialization file(`.ema
 If the installation doesn't work try refreshing the package list:
 
 <kbd>M-x package-refresh-contents [RET]</kbd>
+
+## Usage
+
+First you have to install javap-mode because it will be used to display JVM-bytecode.
+
+Next. Since nrepl-decompile depends on nrepl, it has to be installed and running. Start nrepl session like this:
+
+<kbd>M-x nrepl-jack-in [RET]</kbd>
+
+Let's say, we've got the following namespace in the Clojure project: myns.core. Compile it, pressing in its buffer:
+
+<kbd>C-c C-k</kbd>
+
+Switch to this namespace in the nrepl buffer.
+
+```lisp
+(in-ns 'myns.core)
+```
+
+Now you may decompile any function in the current namespace using command "nrepl-decompile-func". For instance, if you have function myns.core/main, then you may decompile it like this:
+
+<kbd>M-x nrepl-decompile-func [RET] main [RET]</kbd>
+
+If you want to decompile a function from the other namespaces, you may use command "nrepl-decompile-ns-func". For example, decompiling function myotherns.core/other-main would look like this:
+
+<kbd>M-x nrepl-decompile-ns-func [RET] myotherns.core/other-main [RET]</kbd>
+
+After the command was invoked, the buffer *decompiled* apears showing the bytecode of the function.