New option for indicating German word when searching

[jiedxu]

Closing #82

[codecov]

Codecov Report

Merging #83 (73d071e) into master (88e6f19) will increase coverage by 0.14%.
The diff coverage is 88.88%.

@@            Coverage Diff             @@
##           master      #83      +/-   ##
==========================================
+ Coverage   88.18%   88.32%   +0.14%     
==========================================
  Files          13       13              
  Lines         364      377      +13     
==========================================
+ Hits          321      333      +12     
- Misses         43       44       +1     

Impacted Files	Coverage Δ
src/cmdict/run_script.py	69.44% <85.71%> (+1.76%)	⬆️
tests/cmdict/test_run_script.py	96.55% <100.00%> (+0.25%)	⬆️

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