DOC: Add nrows to DataFrame.from_records docstring (#21735)

Author: mortada

pandas/core/frame.py

@@ -1215,6 +1215,8 @@ def from_records(cls, data, index=None, exclude=None, columns=None,
         coerce_float : boolean, default False
             Attempt to convert values of non-string, non-numeric objects (like
             decimal.Decimal) to floating point, useful for SQL result sets
+        nrows : int, default None
+            Number of rows to read if data is an iterator
 
         Returns
         -------