DOC: pandas.json_normalize documentation appears to be missing
### 

- [X] I have checked that the issue still exists on the latest versions of the docs on `master` [here](https://pandas.pydata.org/docs/dev/)


### Location of the documentation

https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.json_normalize.html

https://pandas.pydata.org/docs/reference/api/pandas.json_normalize.html

https://pandas.pydata.org/docs/dev/reference/api/pandas.json_normalize.html

### Documentation problem

dead links

### Suggested fix for documentation

make the link work