add support for language param

[stefanocudini]

No description provided.

[codecov-commenter]

Codecov Report

Merging #62 (0425ae5) into master (aafa098) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #62   +/-   ##
=======================================
  Coverage   60.00%   60.00%           
=======================================
  Files           1        1           
  Lines          60       60           
  Branches       20       20           
=======================================
  Hits           36       36           
  Misses         19       19           
  Partials        5        5           

Impacted Files	Coverage Δ
index.js	60.00% <ø> (ø)

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