Updated liinks and description of LibCore

[codecov-io]

Codecov Report

Merging #29 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #29   +/-   ##
=======================================
  Coverage   87.81%   87.81%           
=======================================
  Files          54       54           
  Lines         476      476           
=======================================
  Hits          418      418           
  Misses         58       58

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[nokome]

Thanks!