Update main README.md

[iakov]

• [x] Mention/reference old https://github.com/qreal/qreal project.
• [x] Remove other mentions.
• [x] Badges,
• [x] TRIK Studio logo (coming soon)
• [ ] Reference to issue reporting procedure REPORT_ISSUE.md.
• [ ] Explain build requirements and build steps (or BUILD.md)

[iakov]

We need build procedure description. Issue reporting can be postponed as a separate issue

[IKhonakhbeeva]

Инструкция к винде (предварительная) : https://github.com/IKhonakhbeeva/trik-studio/wiki/Windows-build-with-Qt-Creator

[IKhonakhbeeva]

Шаблоны по issue - пока что просто не знаем, как он должен выглядеть

[kleo-53]

Wrote instructions for building the TRIK studio for 32-bit Windows from console https://github.com/kleo-53/trik-studio/wiki/Windows-x32-build-with-console

[iakov]

#1681 merged