Fix typo.

Author: yajra

html-builder-minified-ajax.md

@@ -3,7 +3,7 @@
 Ajax is an option that you set to tell `dataTable` where to fetch it's data. 
 But unlike the regular ajax method, `minifiedAjax` minifies the url generated by dataTables by removing any unnecessary query parameters thus shortening the url
 from approx 1500 url length down to 500. 
-Shortening the URL will help us prevent any browser and development issues concerning the URL length existing the max allowed value.
+Shortening the URL will help us prevent any browser and development issues concerning the URL length exceeding the max allowed value.
 
 
 **Syntax**