typo for licenses

[tvc-amaffei]

This is for issue #27

[codecov-commenter]

Codecov Report

Merging #28 into master will decrease coverage by 0.49%. The diff coverage is 100.00%.

@@            Coverage Diff             @@
##           master      #28      +/-   ##
==========================================
- Coverage   78.31%   77.82%   -0.50%     
==========================================
  Files           6        6              
  Lines         226      221       -5     
==========================================
- Hits          177      172       -5     
  Misses         49       49              

Impacted Files	Coverage Δ
R/read_csvy.R	69.17% <100.00%> (-0.46%)	:arrow_down:
R/get_yaml_header.R	94.44% <0.00%> (-0.80%)	:arrow_down:

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