docs(issue_template): update issue template demo version (valor-softw…

…are#418)

* Update ISSUE_TEMPLATE.md

* Update ISSUE_TEMPLATE.md

.github/ISSUE_TEMPLATE.md

@@ -2,8 +2,8 @@
 
 ng2-charts is a port & modification of Chart.js component for Angular 2. Sometimes the issue is related with Chart.js instead of ng2-charts.
 To confirm, if the issue shows in a pure Chart.js project, it is a issue of Chart.js.
-Pure Chart.js starting template: https://jsfiddle.net/Hongbo_Miao/mvct2uwo/
+Pure Chart.js starting template: https://jsfiddle.net/Hongbo_Miao/mvct2uwo/3/
 
 If the issue does not show in a pure Chart.js project, and shows in a ng2-charts project, please try to provide a minimal demo of the problem.
-ng2-charts starting template: http://plnkr.co/edit/7fGsiuRjcF0M0Ffeoml2?p=preview
+ng2-charts starting template: http://plnkr.co/edit/Ka4NXG3pZ1mXnaN95HX5?p=preview