DOC: change docstring in sync with pandas.Timestamp.round

Author: tuhinsharma121

pandas/_libs/tslibs/nattype.pyx

@@ -947,6 +947,12 @@ class NaTType(_NaT):
         """
         Round the Timestamp to the specified resolution.
 
+        This method rounds the given Timestamp down to a specified frequency
+        level. It is particularly useful in data analysis to normalize timestamps
+        to regular frequency intervals. For instance, rounding to the nearest
+        minute, hour, or day can help in time series comparisons or resampling
+        operations.
+
         Parameters
         ----------
         freq : str
@@ -981,6 +987,14 @@ timedelta}, default 'raise'
         ------
         ValueError if the freq cannot be converted
 
+        See Also
+        --------
+        datetime.round : Similar behavior in native Python datetime module.
+        Timestamp.floor : Round the Timestamp downward to the nearest multiple
+            of the specified frequency.
+        Timestamp.ceil : Round the Timestamp upward to the nearest multiple of
+            the specified frequency.
+
         Notes
         -----
         If the Timestamp has a timezone, rounding will take place relative to the