docs(Feed): add missing docs

[kamdz]

I noticed by accident that this docs was missing :)

[codecov-io]

Codecov Report

Merging #1374 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master    #1374   +/-   ##
=======================================
  Coverage   99.74%   99.74%           
=======================================
  Files         140      140           
  Lines        2345     2345           
=======================================
  Hits         2339     2339           
  Misses          6        6

Impacted Files	Coverage Δ
src/views/Feed/Feed.js	100% <ø> (ø)	✅

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[levithomason]

Thanks!