Update README.rst

Author: robertsulej

README.rst

@@ -43,7 +43,7 @@ No need to write shaders, intersection algorithms, handle 3D scene technicalitie
 see `examples on GitHub <https://github.com/rnd-team-dev/plotoptix/tree/master/examples>`__
 for practical code samples.
 
-PlotOptiX is based on `NVIDIA OptiX 7 <https://developer.nvidia.com/optix>`_ framework. It is a set of CUDA shaders by `R&D Team <https://rnd.team>`_ wrapped in RnD.SharpOptiX C#/C++ libraries with a Python API. PlotOptiX makes use of RTX-capable GPU's.
+PlotOptiX is based on `NVIDIA OptiX 7.1 <https://developer.nvidia.com/optix>`_ framework. It is a set of CUDA shaders by `R&D Team <https://rnd.team>`_ wrapped in RnD.SharpOptiX C#/C++ libraries with a Python API. PlotOptiX makes use of RTX-capable GPU's.
 
 .. image:: https://plotoptix.rnd.team/images/screenshots.jpg
    :alt: PlotOptiX screenshots, scatter and line plots ray tracing
@@ -58,7 +58,7 @@ Features
 - spherical and parallelogram light sources, light emission in volumes
 - environmental light, environment maps, and ambient occlusion
 - post-processing: tonal correction curves, levels adjustment, apply mask/overlay, AI denoiser
-- GPU acceleration using RT Cores and everything else what comes with `OptiX 7 <https://developer.nvidia.com/optix>`__
+- GPU acceleration using RT Cores and everything else what comes with `OptiX 7.1 <https://developer.nvidia.com/optix>`__
 - callbacks at the scene initialization, start and end of each frame raytracing, end of progressive accumulation
 - 8/16/32bps(hdr) image output to `numpy <http://www.numpy.org>`__ array, or save to popular image file formats
 - hardware accelerated video output to MP4 file format using `NVENC 9.0 <https://developer.nvidia.com/nvidia-video-codec-sdk>`__