Update templates

.github/PULL_REQUEST_TEMPLATE/bug-fixing.md

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+---
+name: Bug fixing and improvements
+about: Fix existing bug with images or code improvements
+title: ''
+labels: ''
+assignees: ''
+
+---
+
+**Description**
+
+Please include a summary of the change and which issue is fixed. Please also include relevant motivation and context. List any dependencies that are required for this change.
+
+**Check list**
+- [ ] non-breaking change which fixes an issue
+- [ ] breaking change / regression
+- [ ] Related images are successfully generated

.github/PULL_REQUEST_TEMPLATE/new-tool-adding.md

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+---
+name: Add new tool
+about: Add a new tool or update the existing one
+title: Update/Add [tool name]
+labels: ''
+assignees: ''
+
+---
+
+**Tool information**
+- Tool name: <!--- Name -->
+- URL for tool's homepage: <!--- URL -->
+- Installation time: <!--- How much time does tool require to install tool -->
+- Total size: <!--- How much disk space does tool require -->
+- Related issue: <!-- Issue -->
+
+**Virtual environments affected**
+- [ ] macOS 10.15
+- [ ] Ubuntu 16.04 LTS
+- [ ] Ubuntu 18.04 LTS
+- [ ] Windows Server 2016 R2
+- [ ] Windows Server 2019
+
+**Check list**
+- [ ] Installation time is provided
+- [ ] Tool size is provided
+- [ ] Tests are written
+- [ ] Documentation is added
+- [ ] Related images are successfully generated