Init docs, refactoring

[marchinho11]

Tasks

• Add the FLOAT type
• Init docs
• Refine tests
• Simplify interfaces: migration, task, __init__ files
• Refine README.md

[codecov]

Codecov Report

Merging #14 (c4d67de) into main (d5f5196) will increase coverage by 0.34%.
The diff coverage is 100.00%.

@@            Coverage Diff             @@
##             main      #14      +/-   ##
==========================================
+ Coverage   97.92%   98.26%   +0.34%     
==========================================
  Files          23       23              
  Lines         964      980      +16     
==========================================
+ Hits          944      963      +19     
+ Misses         20       17       -3     

Impacted Files	Coverage Δ
hnhm/core/migration.py	100.00% <ø> (ø)
hnhm/core/task.py	100.00% <ø> (ø)
hnhm/__init__.py	100.00% <100.00%> (ø)
hnhm/cli.py	97.50% <100.00%> (+0.27%)	⬆️
hnhm/core/__init__.py	100.00% <100.00%> (ø)
hnhm/core/attribute.py	100.00% <100.00%> (ø)
hnhm/core/entity.py	100.00% <100.00%> (ø)
hnhm/core/link.py	100.00% <100.00%> (ø)
hnhm/core/sql.py	100.00% <100.00%> (ø)
hnhm/core/state.py	100.00% <100.00%> (ø)
... and 9 more