Added opengraph meta information to docs

[vania-pooh]

No description provided.

[codecov]

Codecov Report

Merging #62 (3a2d0b7) into master (f784dea) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #62   +/-   ##
=======================================
  Coverage   51.86%   51.86%           
=======================================
  Files           3        3           
  Lines         214      214           
=======================================
  Hits          111      111           
  Misses         89       89           
  Partials       14       14           

Flag	Coverage Δ
go	51.86% <ø> (ø)

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