Add "contributors" to the list of authors in the LICENSE and Project.toml files

[DilumAluthge]

No description provided.

[codecov]

Codecov Report

Merging #312 (08bbdc6) into master (b4d4acb) will increase coverage by 0.51%.
The diff coverage is n/a.

❗ Current head 08bbdc6 differs from pull request most recent head 2a99fb0. Consider uploading reports for the commit 2a99fb0 to get more accurate results

@@            Coverage Diff             @@
##           master     #312      +/-   ##
==========================================
+ Coverage   90.25%   90.76%   +0.51%     
==========================================
  Files           2        2              
  Lines         195      195              
==========================================
+ Hits          176      177       +1     
+ Misses         19       18       -1     

Impacted Files	Coverage Δ
src/coveralls.jl	94.17% <0.00%> (-1.95%)	⬇️
src/codecovio.jl	86.95% <0.00%> (+3.26%)	⬆️

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