Far Cry 4: Note shadow fix is high or lower in README.md

As much as a reminder for myself than anyone else.
Far Cry 4: Add ini file from 3Dmigoto 0.99.25
Far Cry 4: Make UI/HUD depth adjustable

The scope shaders already seem to have depth, but aren't being
stereoised automatically. This adjustment moves them to the UI depth,
but at least for the red dot sight I might want to use the standard
stereo correction formula instead. I might revisit this later after I
add an auto-convergence switch on RMB.