DOC: operator wrapper names do not match math operators (#53765)

* Updated DataFrame.div docstrings

* Tagged changes to v2.0.3

* Removed whatsnew comment

* Update v2.0.3.rst

Author: rsm-23

pandas/core/ops/docstrings.py

@@ -463,7 +463,7 @@ def make_flex_doc(op_name: str, typ: str) -> str:
 Equivalent to ``{equiv}``, but with support to substitute a fill_value
 for missing data in one of the inputs. With reverse version, `{reverse}`.
 
-Among flexible wrappers (`add`, `sub`, `mul`, `div`, `mod`, `pow`) to
+Among flexible wrappers (`add`, `sub`, `mul`, `div`, `floordiv`, `mod`, `pow`) to
 arithmetic operators: `+`, `-`, `*`, `/`, `//`, `%`, `**`.
 
 Parameters