Fix spurious doc test failures

[letmutx]

Fix #105

[codecov-io]

Codecov Report

Merging #106 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master     #106   +/-   ##
=======================================
  Coverage   50.58%   50.58%           
=======================================
  Files          10       10           
  Lines         682      682           
=======================================
  Hits          345      345           
  Misses        337      337

Impacted Files	Coverage Δ
src/client.rs	95.89% <ø> (ø)	⬆️

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[letmutx]

@aisk CommitCheck doesn't show the expected commit message format. Is it documented somewhere? Please add it to README.md.

[aisk]

Sorry I'll add it to README latter. For now, all commit' title must be starting with https://gitmoji.carloscuesta.me/ , and a white space and lower case titles, like:

:bug: fixed something