fix example for examples/createSocialGraph.py

[efazati]

example createSocialGraph.py not work probably

[codecov-io]

Codecov Report

Merging #66 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #66   +/-   ##
=======================================
  Coverage   79.68%   79.68%           
=======================================
  Files          12       12           
  Lines        1925     1925           
=======================================
  Hits         1534     1534           
  Misses        391      391

Impacted Files	Coverage Δ
pyArango/connection.py	61.15% <0%> (ø)	⬆️

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[tariqdaouda]

All good thanks!