Fix playground link

Author: EmilStoychev

.github/ISSUE_TEMPLATE.md

@@ -29,5 +29,5 @@ project)
 ### Please tell us how to recreate the issue in as much detail as possible.
 
 ### Is there code involved? If so, please share the minimal amount of code needed to recreate the problem.
-Consider using the [playground] (https://play.nativescript.org) to provide the code you have issues with.
+Consider using the [playground](https://play.nativescript.org) to provide the code you have issues with.