revise layout of fluid settings documentation
revise layout of fluid settings documentation

force it into the currently used table layout

FluidSynth/fluidsynth,FluidSynth/fluidsynth,nezticle/fluidsynth,FluidSynth/fluidsynth,nezticle/fluidsynth,FluidSynth/fluidsynth,nezticle/fluidsynth,nezticle/fluidsynth