Update issue templates

Author: duncdrum

.github/ISSUE_TEMPLATE/content-issue.md

@@ -0,0 +1,21 @@
+---
+name: Content Issue
+about: Create a report about inaccurate or misleading contents
+title: "[ARTICLE.xml]: "
+labels: docs-outdated
+assignees: ''
+
+---
+
+:balloon: First off, thank you for contributing to eXist-db's documentation. :balloon:
+
+**Describe the problem**
+> For problems with a specific article or page, please state the name of the page at the beginning of the title line, like this `[XXX.xml] something isn't right with...` You can find the name of the docbook xml file in URI bar of your browser.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+
+### Please provide the following
+*   exist-db version: `5.2.0`
+*   documentation version: `5.2.0`