Add images for Qubel setup guide
Merge branch 'master' of github.com:griddynamics/Behavior-Analytic-Starter-Kit

# By schinilov (41) and Nickolay Yurin (2)
# Via schinilov
* 'master' of github.com:griddynamics/Behavior-Analytic-Starter-Kit: (43 commits)
  Update Getting-started--Generate-sample-transaction-log.md
  Update Getting-started--Generate-sample-transaction-log.md
  Update Developer-Guide--Behavior-Analytics-Platform--Transaction-Log-Generator.md
  Create Getting-started--Generate-sample-transaction-log.md
  Update README.md
  Update Getting-started--Put-product-catalog-information-to-s3.md
  Create Getting-started--Put-product-catalog-information-to-s3.md
  Update Qubell-setup-guide.md
  Update README.md
  Update Getting-started--Load-product-catalog.md
  Update Getting-started--Load-product-catalog.md
  Update Getting-started--Load-product-catalog.md
  Create Getting-started--Load-product-catalog.md
  Update README.md
  Update Qubell-setup-guide.md
  Update Qubell-setup-guide.md
  Update README.md
  Update Getting-started--Launch-applications.md
  Update Getting-started--Launch-applications.md
  Update Qubell-setup-guide.md
  ...