DOC: Fixing EX01 - Added examples
- [x] All [code checks passed](https://pandas.pydata.org/pandas-docs/dev/development/contributing_codebase.html#pre-commit).

Towards https://github.com/pandas-dev/pandas/issues/37875

```
Error: /home/runner/work/pandas/pandas/pandas/core/resample.py:1106:RT01:pandas.core.resample.Resampler.max:No Returns section found
Error: /home/runner/work/pandas/pandas/pandas/core/resample.py:1076:RT01:pandas.core.resample.Resampler.min:No Returns section found
``` I hope it's good now. Sorry. 