Add wearable app description

[pengyuan-zhou]

Description

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Affected Dependencies

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How has this been tested?

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Checklist

• [ ] I have followed the Contribution Guidelines and Code of Conduct
• [ ] I have commented my code following the OpenMined Styleguide
• [ ] I have labeled this PR with the relevant Type labels
• [ ] My changes are covered by tests

[codecov[bot]]

Codecov Report

Merging #326 (b67d921) into dev (c58854b) will decrease coverage by 0.06%. The diff coverage is n/a.

@@            Coverage Diff             @@
##              dev     #326      +/-   ##
==========================================
- Coverage   30.83%   30.76%   -0.07%     
==========================================
  Files          54       54              
  Lines        1456     1456              
  Branches      229      229              
==========================================
- Hits          449      448       -1     
- Misses        964      965       +1     
  Partials       43       43              

Impacted Files	Coverage Δ
...openmined/syft/networking/clients/SyftWebSocket.kt	77.08% <0.00%> (-2.09%)	:arrow_down:

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