Revert "Merge branch 'master' of https://github.com/Bloshi/Data-visualitation"

This reverts commit 96cb4e39570f49ed7801ed526d341d8354b5394a, reversing
changes made to 67b2299cdafdaeac83e1c35461d1316e11ce7479.
Revert b4be9bc..ddfdd55

This rolls back to commit b4be9bc3417d4f3df40020598209899d3d716b87.