Daxa

A table column name changed, which meant that getting the table of available observations for XMMPointed was erroring.

What's Changed
* Docs/update install instructions by DavidT3 in https://github.com/DavidT3/DAXA/pull/276
* Jessica (jessicapilling) noticed the online table for XMM evidently … by DavidT3 in https://github.com/DavidT3/DAXA/pull/279


**Full Changelog**: https://github.com/DavidT3/DAXA/compare/v0.0.4...v0.0.5

This really does highlight why test PyPI is so useful normally, but nevermind. I am now using the setuptools function 'find_packages' to hopefully get all the submodules included in the build.