Doc and import improvement #4

[jlaehne]

Description of the change

Follow up on #47, #59, and #64 adresses #38. For readers with folder names from I...M+dens.

Progress of the PR

• Change implemented (can be split into several points),
• update docstring (if appropriate),
• update user guide (if appropriate),
• add an changelog entry in the upcoming_changes folder (see upcoming_changes/README.rst),
• Check formatting changelog entry in the readthedocs doc build of this PR (link in github checks)
• add tests,
• ready for review.

[codecov]

Codecov Report

Base: 84.11% // Head: 84.27% // Increases project coverage by +0.15% 🎉

Coverage data is based on head (b86f0ab) compared to base (7a34b06).
Patch coverage: 96.92% of modified lines in pull request are covered.

Additional details and impacted files

@@            Coverage Diff             @@
##             main      #72      +/-   ##
==========================================
+ Coverage   84.11%   84.27%   +0.15%     
==========================================
  Files          56       65       +9     
  Lines        8411     8481      +70     
  Branches     1890     1894       +4     
==========================================
+ Hits         7075     7147      +72     
+ Misses        877      875       -2     
  Partials      459      459              

Impacted Files	Coverage Δ
rsciio/__init__.py	100.00% <ø> (ø)
rsciio/tiff/_api.py	88.24% <ø> (ø)
rsciio/zspy/_api.py	92.77% <ø> (ø)
rsciio/mrc/_api.py	21.42% <60.00%> (ø)
rsciio/blockfile/_api.py	95.31% <100.00%> (ø)
rsciio/dens/__init__.py	100.00% <100.00%> (ø)
rsciio/dens/_api.py	83.92% <100.00%> (ø)
rsciio/docstrings.py	100.00% <100.00%> (ø)
rsciio/image/__init__.py	100.00% <100.00%> (ø)
rsciio/image/_api.py	91.86% <100.00%> (ø)
... and 14 more

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

☔ View full report at Codecov.
📢 Do you have feedback about the report comment? Let us know in this issue.

[jlaehne]

Failing test is due to old loading from the api in hyperspy/misc/eels/eelsdb.py . See hyperspy/hyperspy#3074