Add -v for INFO level logging to the example use of extract_tables

[HiromuHota]

Description of the problems or issues

Is your pull request related to a problem? Please describe.

See #70

Does your pull request fix any issue.

Close #70

Description of the proposed changes

Just add -v for INFO level logging to the example use of extract_tables

Test plan

N/A

Checklist

• [ ] I have updated the documentation accordingly.
• [ ] I have added tests to cover my changes.
• [ ] All new and existing tests passed.
• [ ] I have updated the CHANGELOG.md accordingly.

[codecov-io]

Codecov Report

Merging #108 into master will not change coverage. The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #108   +/-   ##
=======================================
  Coverage   67.69%   67.69%           
=======================================
  Files          24       24           
  Lines        2600     2600           
=======================================
  Hits         1760     1760           
  Misses        840      840           

Flag	Coverage Δ
unittests	67.69% <ø> (ø)

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