Update README.md

README.md

@@ -80,7 +80,7 @@ Sakai 12 is under development and expected to be released in the first quarter o
 
 CKSource has created a GPL licensed open source version of their [Accessibility Checker](https://cksource.com/ckeditor/services#accessibility-checker) that lets you inspect the accessibility level of content created in CKEditor and immediately solve any accessibility issues that are found. CKEditor is the open source rich text editor used throughout Sakai. Whlie the Accessibility Checker, due to the GPL license, can not be bundled with Sakai, it can be used with Sakai and the A11y group has created [instructions](https://confluence.sakaiproject.org/display/2ACC/CKEditor+Accessibility+Checker) to help you.
 
-## Skining Sakai
+## Skinning Sakai
 Documentation on how to alter the Sakai skin (look and feel) is here https://github.com/sakaiproject/sakai/tree/master/library
 
 ## Community (contrib) tools