Create issue templates

.github/ISSUE_TEMPLATE/report-problems-with-the-software.md

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+---
+name: Report problems with the software
+about: You have your own installation of Nominatim and found a bug.
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+___Note: if you are installing Nominatim through a docker image, you should report issues with the installation process with the docker repository first.___
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Please describe what you did to get to the issue.
+
+**Software Environment (please complete the following information):**
+- Nominatim version: 
+- Postgresql version: 
+- Postgis version:
+- OS: 
+
+**Hardware Configuration (please complete the following information):**
+- RAM: 
+- number of CPUs:
+- type and size of disks:
+- bare metal/AWS/other cloud service: 
+
+**Additional context**
+Add any other context about the problem here.