Add a header to the spend-down section

[mgwalker]

Closes #7.

[codecov-io]

Codecov Report

Merging #9 into develop will not change coverage.
The diff coverage is n/a.

@@          Coverage Diff           @@
##           develop     #9   +/-   ##
======================================
  Coverage      100%   100%           
======================================
  Files            8      8           
  Lines           79     79           
  Branches         9      9           
======================================
  Hits            79     79

Impacted Files	Coverage Δ
api/routes/client.js	100% <ø> (ø)	⬆️

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