Poetry config

[griff-rees]

Hi @LydiaFrance and @andrewphilipsmith. I haven't reached all the goals for version 0.3.4, and the only tickets addressed so far are

• Remove legacy setup.py #44
• prepare as a python package #20

but I figured getting your thoughts on how far I've gotten (have a look at CHANGELOG.md, but can highlight stuff here as well if you like).

If you'd also rather only merge to main when all changes for 3.4 are achieved no worries, can create further branches for those changes but figured this might be a helpful start to review how it's going.

[griff-rees]

Looks like I need to alter everything to python>=3.7, will update you on that when it's ready.

[LydiaFrance]

From an AAAH perspective important that the walkthroughs/demos with the dummy files work. I tried running the demo in the documentation (see demo.md) and those instructions are out of date.

• pip install alto2txt needs to replace pip install -r requirements.txt
• the directory tree for ./extract_publications_text.py -p single demo-files demo-output needs to be changed to src/alto2txt/extract_publications_text.py

[griff-rees]

Hey @LydiaFrance: thanks for the comments. I'm hoping my recent commits addresses that, another review would be great.

[LydiaFrance]

I think this looks good!