DOC: Fix and extend ParserError docstring
[`ParserError` says](https://github.com/pandas-dev/pandas/blob/8e51fd38607e94524b66ba15002e2502240baa32/pandas/errors/__init__.py#L35):
>Exception that is raised by an error encountered in `pd.read_csv`

however, it seems to be raised at least by html parsing, and perhaps other parsers as well: https://github.com/pandas-dev/pandas/blob/486e626bd3e7282b3da9993807f6246ef3ddda76/pandas/tests/io/test_html.py#L820-L829

As higher level point, it would be great if the list of potential runtime exceptions raised by the the various parsers were documented in the docs.