add OpenSource Weather App built with Fish Redux

[danieldai]

Add 'OpenSource Weather App built with Fish Redux' in README

[CLAassistant]

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[codecov-commenter]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 53.01%. Comparing base (8f4788e) to head (8780e51).
⚠️ Report is 17 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #696   +/-   ##
=======================================
  Coverage   53.01%   53.01%           
=======================================
  Files          54       54           
  Lines        1358     1358           
=======================================
  Hits          720      720           
  Misses        638      638           

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