Doc fix: Custom placeholders don't have to be defined in order any more

[jwodder]

No description provided.

[codecov-commenter]

Codecov Report

Merging #99 (ea7c9a7) into master (b4f1a5e) will decrease coverage by 2.19%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master      #99      +/-   ##
==========================================
- Coverage   72.95%   70.76%   -2.20%     
==========================================
  Files           9        9              
  Lines         821      821              
  Branches      121      121              
==========================================
- Hits          599      581      -18     
- Misses        179      197      +18     
  Partials       43       43              

Impacted Files	Coverage Δ
src/tinuous/__main__.py	48.87% <0.00%> (-9.78%)	⬇️
src/tinuous/github.py	54.59% <0.00%> (-2.56%)	⬇️

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[yarikoptic]

Must be true if you say so. I wonder what weighs happen in case of a circular use though - will we fail gracefully or provide arbitrary result or crash with infinite recursion? ;-)

[jwodder]

@yarikoptic Crash with infinite recursion.

[yarikoptic]

@yarikoptic Crash with infinite recursion.

good, in that much better than "arbitrary result" ;)