Update doc strings

Author: VaghinakDev

README.rst

@@ -105,7 +105,7 @@ SuperAnnotate python SDK is available on PyPI:
     pip install superannotate
 
 
-The package officially supports Python 3.7+ and was tested under Linux and
+The package officially supports Python 3.10+ and was tested under Linux and
 Windows (`Anaconda <https://www.anaconda.com/products/individual#windows>`__
 ) platforms.
 

docs/source/userguide/quickstart.rst

@@ -15,7 +15,7 @@ SDK is available on PyPI:
 
    pip install superannotate
 
-The package officially supports Python 3.7+ and was tested under Linux and
+The package officially supports Python 3.10+ and was tested under Linux and
 Windows (`Anaconda <https://www.anaconda.com/products/individual#windows>`_) platforms.
 
 For certain video related functions to work, ffmpeg package needs to be installed.