Work out pip installation instructions

[dr-rodriguez]

Regardless of whether SIMPLE is pip-installable, we want to work out details for how a user can install what they need with pip without needing conda.

[dr-rodriguez]

Looking at how the tests set up the environment is a good starting point, but we may want to do things like a requirements.txt file (which is similar to conda's environment.yml)

[kelle]

conda  create -n "simple-db" python=3.10
conda activate simple-db
pip install pytest ads matplotlib
pip install astrodbkit2
pip install git+https://github.com/astrodbtoolkit/astrodb_utils.git@main

[kelle]

Both summer students (Kieran and Evan) had exactly the same problem with the current conda instructions. Multiple packages were not able to be found. I added the http://ssb.stsci.edu/astroconda channel and it didn't help.

The pip instructions I pasted above did seem to work, however. 😊

[kelle]

Lets try to get this to work: pip install -r requirements.txt