README.md in mail-jdec-1.1.2 vs README.md in mail-jdec-1.2.0

@@ -24,13 +24,13 @@
 
 Use mail as usual. You can enable/disable patched features as follows:
 
 ```ruby
 # disable patch
-Mail::Jdec.disable
+Mail::Jdec.disable!
 
 # enable patch
-Mail::Jdec.enable
+Mail::Jdec.enable!
 ```
 
 ## Contributing
 
 Pull requests are welcome at https://github.com/kanety/mail-jdec.