Add text to license file to make it explicit that it is the MIT license

AllanJard · AllanJard · commit 9c285f30304c · 2015-08-11T20:57:20.000+01:00
diff --git a/License.txt b/License.txt
@@ -1,3 +1,5 @@
+MIT license
+
 Copyright (c) 2009-2015 SpryMedia Limited
 http://datatables.net
 

Original file line number	Diff line number	Diff line change
`@@ -1,3 +1,5 @@`
	`1`	`+MIT license`
	`2`	`+`
`1`	`3`	`Copyright (c) 2009-2015 SpryMedia Limited`
`2`	`4`	`http://datatables.net`
`3`	`5`