Changes to tmpdir behaviour; tweaks to the tutorial docs

[elinscott]

• changes to the way we set up the tmpdirs in the wannier and folding workflows, in order to mean that the code does not crash if I load wf from a json in one directory but then call wf.run() from another
• Removing the provided nr?b keywords from the tutorial 2 input file (because these are now autogenerated)
• Fixing a highlight in the rst docs

[pep8speaks]

Hello @elinscott! Thanks for updating this PR.

There are currently no PEP 8 issues detected in this Pull Request. Cheers! 🍻

Comment last updated at 2022-08-26 16:09:42 UTC

[codecov-commenter]

Codecov Report

Merging #175 (aec8cf3) into master (34dc922) will decrease coverage by 0.00%.
The diff coverage is 57.14%.

@@            Coverage Diff             @@
##           master     #175      +/-   ##
==========================================
- Coverage   83.21%   83.20%   -0.01%     
==========================================
  Files          66       66              
  Lines        5569     5572       +3     
==========================================
+ Hits         4634     4636       +2     
- Misses        935      936       +1     

Impacted Files	Coverage Δ
koopmans/workflows/_wannierize.py	72.50% <ø> (-0.22%)	⬇️
koopmans/workflows/_folding.py	53.33% <43.75%> (+1.06%)	⬆️
koopmans/__init__.py	100.00% <100.00%> (ø)
koopmans/workflows/_koopmans_dscf.py	86.43% <100.00%> (ø)
koopmans/workflows/_workflow.py	87.24% <100.00%> (+0.06%)	⬆️
koopmans/workflows/_koopmans_dfpt.py	84.97% <0.00%> (-0.58%)	⬇️

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[degennar]

good for me! Thanks Edward!