Fix wrong link to PTS term in docs

Author: NicolasHug

src/torchcodec/decoders/_simple_video_decoder.py

@@ -312,7 +312,7 @@ def get_frames_displayed_at(
         """Returns multiple frames in the given range.
 
         Frames are in the half open range [start_seconds, stop_seconds). Each
-        returned frame's :term`pts`, in seconds, is inside of the half open
+        returned frame's :term:`pts`, in seconds, is inside of the half open
         range.
 
         Args: