Create ISSUE_TEMPLATE.md

.github/ISSUE_TEMPLATE.md

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+<!-- Please use this template when creating an issue. 
+- Please check the boxes after you've created your issue.
+- Please use the latest version of Yoast SEO.-->
+
+* [ ] I've read and understood the [contribution guidelines](https://github.com/Yoast/Yoast-SEO-for-TYPO3/blob/master/.github/CONTRIBUTING.md).
+* [ ] I've searched for any related issues and avoided creating a duplicate issue.
+
+### Please give us a description of what happened.
+
+
+
+
+### Please describe what you expected to happen and why.
+
+
+
+
+### How can we reproduce this behavior?
+1.
+2.
+3.
+
+### Technical info
+* TYPO3 version:
+* Yoast SEO version:
+* Relevant extensions in case of a bug: