README.md in assassin-0.4.2 vs README.md in assassin-1.4.2

@@ -6,13 +6,15 @@
 --------
   no zombies ever, not even on `exit!` or `kill -9`
 
 USAGE
 -----
-  pipe = IO.popen 'program-that-must-not-be-zombied'
+```ruby
+  pipe = IO.popen 'some-program-that-must-not-be-zombied'
 
   Assassin.at_exit_kill(pipe.pid)
+```
 
   also see lib/assassin.rb and test/assassin_test.rb
 
 DESCRIPTION
 -----------
@@ -25,10 +27,10 @@
   through escalation of signals that a child process is shut down and does not
   become a zombie.
 
   this becomes espcially important for libraries which spawn processes, such
   as via `IO.popen` that need to ensure those children are cleaned up, but
-  which cannot control whether client code may call `exit`.  this approach
+  which cannot control whether client code may call `exit!`.  this approach
   also handles being `kill -9`d - something no `at_exit{}` handler can
   promise.
 
 INSTALL
 -------