Enh/nicer printing

[kalmarek]

No description provided.

[codecov]

Codecov Report

Merging #30 (275d0d7) into master (e3fdd18) will decrease coverage by 0.58%.
The diff coverage is 33.33%.

@@            Coverage Diff             @@
##           master      #30      +/-   ##
==========================================
- Coverage   90.41%   89.83%   -0.59%     
==========================================
  Files          14       15       +1     
  Lines         480      482       +2     
==========================================
- Hits          434      433       -1     
- Misses         46       49       +3     

Flag	Coverage Δ
unittests	89.83% <33.33%> (-0.59%)	⬇️

Flags with carried forward coverage won't be shown. Click here to find out more.

Impacted Files	Coverage Δ
src/group_interface.jl	98.27% <ø> (+8.56%)	⬆️
src/io.jl	33.33% <33.33%> (ø)
src/stabchain.jl	96.72% <0.00%> (-1.64%)	⬇️

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