correct the @After hook example

[capaj]

as it was before it was a bit confusing.

This example would have worked much better if the TODO left in code about passing the return value was implemented.
Then it could be something like:

[codecov]

Codecov Report

Merging #66 into master will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #66   +/-   ##
=======================================
  Coverage   91.18%   91.18%           
=======================================
  Files          60       60           
  Lines         658      658           
  Branches       29       29           
=======================================
  Hits          600      600           
  Misses         56       56           
  Partials        2        2

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 313c4b1...49384e9. Read the comment docs.