Typo "promis" => "promise" in documentation

Fixes #633

Author: bbrala

CHANGELOG.md

@@ -5,7 +5,8 @@
 #### Documentation
 
 * Add `getting started` to the documentation.
-* Fix typo in documentation which breaks the `callback` demo.
+* Fixed typo in documentation which breaks the `callback` demo.
+* Fixed typo `promis` => `promise` ([Issue #633](https://github.com/swisnl/jQuery-contextMenu/issues/633)).
 
 ### 2.6.4
 

documentation/demo/async-promise.md

@@ -2,7 +2,7 @@
 currentMenu: async-promise 
 ---
 
-# Demo: Submenu through promis (asynchronous)
+# Demo: Submenu through promise (asynchronous)
 
 <!-- START doctoc generated TOC please keep comment here to allow auto update -->
 <!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->