Fix setup.py

Author: VaghinakDev

setup.py

@@ -30,7 +30,7 @@ def get_version():
     author_email='suppoort@superannotate.com',
     url='https://github.com/superannotateai/superannotate-python-sdk',
     long_description=open('README.rst').read(),
-    long_description_content_type='text/markdown',
+    long_description_content_type='text/x-rst',
     install_requires=requirements,
     setup_requires=['wheel'],
     entry_points={

src/superannotate/lib/core/video_convertor.py

@@ -187,7 +187,7 @@ def _process(self):
                 interpolated_frames = {}
                 for timestamp in parameter["timestamps"]:
                     frames_mapping[
-                        int(math.ceil(timestamp["timestamp"] / self.ratio))
+                        int(math.ceil(timesstamp["timestamp"] / self.ratio))
                     ].append(timestamp)
                 frames_mapping = self.merge_first_frame(frames_mapping)