Important things to highlight in the docs

[divital-coder]

MedEye3d.jl requires support for interactive threading, (julia --threads 3,1)
For windowing of a mask, correct mask must be activated first with alt+1/2/3
Document the string overFlow error during keystrokes check.
Highlight issues with the visualizer freezing of fast multiple keystrokes.
For debugging purposes, over on frozen visualizer , run (GLFW.PollEvents() within the terminal)
To make sure f1,f2,f3 windowing correctly works, we need to pass a studyType option in the textureSpec of respective image.