Doc: Adds example of exploding lists into columns instead of storing in dataframe cells
- [X] closes #17027

# [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/19215?src=pr&el=h1) Report
> Merging [#19215](https://codecov.io/gh/pandas-dev/pandas/pull/19215?src=pr&el=desc) into [master](https://codecov.io/gh/pandas-dev/pandas/commit/8347ff8c9d8876fa46f73dbc48919a672caef1d2?src=pr&el=desc) will **increase** coverage by `0.02%`.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/pandas-dev/pandas/pull/19215/graphs/tree.svg?src=pr&token=eZ4WkYLtcO&width=650&height=150)](https://codecov.io/gh/pandas-dev/pandas/pull/19215?src=pr&el=tree)

```diff
@@            Coverage Diff             @@
##           master   #19215      +/-   ##
==========================================
+ Coverage   91.53%   91.55%   +0.02%     
==========================================
  Files         147      147              
  Lines       48797    48797              
==========================================
+ Hits        44664    44676      +12     
+ Misses       4133     4121      -12
```

| Flag | Coverage Δ | |
|---|---|---|
| #multiple | `89.92% <ø> (+0.02%)` | :arrow_up: |
| #single | `41.6% <ø> (ø)` | :arrow_up: |

| [Impacted Files](https://codecov.io/gh/pandas-dev/pandas/pull/19215?src=pr&el=tree) | Coverage Δ | |
|---|---|---|
| [pandas/plotting/\_converter.py](https://codecov.io/gh/pandas-dev/pandas/pull/19215/diff?src=pr&el=tree#diff-cGFuZGFzL3Bsb3R0aW5nL19jb252ZXJ0ZXIucHk=) | `66.95% <0%> (+1.73%)` | :arrow_up: |

------

[Continue to review full report at Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/19215?src=pr&el=continue).
> **Legend** - [Click here to learn more](https://docs.codecov.io/docs/codecov-delta)
> `Δ = absolute <relative> (impact)`, `ø = not affected`, `? = missing data`
> Powered by [Codecov](https://codecov.io/gh/pandas-dev/pandas/pull/19215?src=pr&el=footer). Last update [8347ff8...11ff8a7](https://codecov.io/gh/pandas-dev/pandas/pull/19215?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).
 can you update can you rebase and update Will do - have been absent due to starting new job, but plan to spend some time on this. Closing as discontinued. Superseded by #23041